jalena slack, jalena.slack@gmail

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1 - 711a A B C 2 - 711b A B C 3 - 711c A B C 4 - 713a A B C 5 - 713b A B C 6 - 713c A B C 7 - 714a A B C 8 - 722a A B C 9 - 722c A B C 10-723b A B C 11-725b A B C 12-731a A B C 13-731b A B C 14-732a A B C 15-733c A B C 16-733d A B C 17-733e A B C 18-741a A B C 19-741b A B C 20-743a A B C 21-743b A B C 22-711d A B C 23-711e A B C 24-712a A B C 25-712b A B C 26-712c A B C 27-721a A B C 28-721b A B C 29-722b A B C 30-723a A B C 31-724a A B C 32-724b A B C 33-724c A B C 34-725a A B C 35-725c A B C 36-731c A B C 37-732b A B C 38-733a A B C 39-733b A B C 40-733f A B C 41-741c A B C 42-741d A B C 43-741e A B C 44-742a A B C 45 A B C 46 A B C 47 A B C 48 A B C 49 A B C 50 A B C 51 A B C 52 A B C 53 A B C 54 A B C 55 A B C 56 A B C 57 A B C 58 A B C 59 A B C 60 A B C 61 A B C 62 A B C 63 A B C 64 A B C JaLena Slack, [email protected]

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JaLena Slack, [email protected]. 1A. Tina finished of the job. What percent of the job, in decimal form, did she complete?. .44 .55 C. .65 D. .7. B. 1B. What value is equivalent to 18%?. C. 1C. - PowerPoint PPT Presentation

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Page 1: JaLena Slack, jalena.slack@gmail

1 - 711aA B C

2 - 711bA B C

3 - 711cA B C

4 - 713aA B C

5 - 713bA B C

6 - 713cA B C

7 - 714aA B C

8 - 722aA B C

9 - 722cA B C

10-723bA B C

11-725bA B C

12-731aA B C

13-731bA B C

14-732aA B C

15-733cA B C

16-733dA B C

17-733eA B C

18-741aA B C

19-741bA B C

20-743aA B C

21-743bA B C

22-711dA B C

23-711eA B C

24-712aA B C

25-712bA B C

26-712cA B C

27-721aA B C

28-721bA B C

29-722bA B C

30-723aA B C

31-724aA B C

32-724bA B C

33-724cA B C

34-725aA B C

35-725cA B C

36-731cA B C

37-732bA B C

38-733aA B C

39-733bA B C

40-733fA B C

41-741cA B C

42-741dA B C

43-741eA B C

44-742aA B C

45A B C

46A B C

47A B C

48A B C

49A B C

50A B C

51A B C

52A B C

53A B C

54A B C

55A B C

56A B C

57A B C

58A B C

59A B C

60A B C

61A B C

62A B C

63A B C

64A B C

JaLena Slack, [email protected]

Page 2: JaLena Slack, jalena.slack@gmail

1A

B

Tina finished of the job. What percent of the job, in decimal form, did she complete?

A. .44B. .55 C. .65

D. .7

Page 3: JaLena Slack, jalena.slack@gmail

1B

C

What value is equivalent to 18%?

Page 4: JaLena Slack, jalena.slack@gmail

1C

D

Juliana finished of the job. What percent of the job did she complete?

A. 3%B. 6%C. 12% D. 15%

Page 5: JaLena Slack, jalena.slack@gmail

2A Which rational number is the largest?

D

A. 60%B. 0.55C. 7/10D. 0.8

Page 6: JaLena Slack, jalena.slack@gmail

2BPlace these numbers in ascending order:

40%, 3/5, .5, 9%, 5/8

C

A. 40%, 9%, 3/5, .5, 5/8 B. 5/8, 3/5, .5, 40%, 9% C. 9%, 40%, .5, 3/5, 5/8

D. 9%, 40%, 3/5, .5, 5/8

Page 7: JaLena Slack, jalena.slack@gmail

2C Place these numbers in descending order:

B

A.

B.

C.

D.

Page 8: JaLena Slack, jalena.slack@gmail

3AExpress 4,500,000 in scientific notation.

D

A. 4.5 x 105

B. 45 x 105

A. 455

D. 4.5 x 106

Page 9: JaLena Slack, jalena.slack@gmail

3B

A

A. 4,123,400

B. 41,234

C. 412,340

D. 4,123.4

What is 4.1234 x 106 in standard notation?

Page 10: JaLena Slack, jalena.slack@gmail

3C

C

A. 7,340B. 734 C. .00734 D. 73,400

What is 7.34 x 10-3 in standard notation?

Page 11: JaLena Slack, jalena.slack@gmail

4A An elevator in a large office building started out on the 31st floor. The Elevator went up 22 floors, stopped for a minute and then went down 36 floors. After stopping for a bit, it went up 7 floors. At that time, what was the floor number of the elevator?

BA. 18B. 24C. 45D. 89

Page 12: JaLena Slack, jalena.slack@gmail

4B The temperature at 8:00 a.m. was -11°F. By noon the temperature had risen 18°F. Between noon and 6:00 p.m. the temperature dropped 9°F. What was the temperature at 6:00 p.m.?

AA. -2°FB. 9°FC. 16°FD. 20°F

Page 13: JaLena Slack, jalena.slack@gmail

4C Two hikers started their morning hike at base camp. In the morning they climbed 671 feet. After lunch they continued by going down 322 feet into a valley. Later that afternoon they continued from the bottom of the valley by climbing another 424 feet up a trail. At that time, how many feet above base camp were they?

CA. 349B. 569C. 773D. 1417

Page 14: JaLena Slack, jalena.slack@gmail

5A Add these numbers in your head:-465 + -8 + 8 + 77 + -77 + 466 = ?

C

A. 0B. 466C. 1D. 932

Page 15: JaLena Slack, jalena.slack@gmail

5B Given the equation below, which step would solve the problem? x – 79 = 43

D

A. Subtract 43 from both sides.B. Add 43 to both sides.C. Subtract 79 from both sides.D. Add 79 to both sides.

Page 16: JaLena Slack, jalena.slack@gmail

5C Given the equation below, which step would solve the problem? 11 = -12 + x

B

A. Subtract 11 from both sides.B. Add 12 to both sides.

C. Subtract 12 from both sides.D. Multiply both sides by 12.

Page 17: JaLena Slack, jalena.slack@gmail

6A Sale! 40% off the regular price of a $90.00 item. What is the sale price?

A. $54.00 B. $50.00C. $36.00D. $22.50

A

Page 18: JaLena Slack, jalena.slack@gmail

6B

C

Maria’s book collection totaled 125 books. If she increases this collection by 40%, how many books would she then have?

A. 50B. 165C. 175 D. 185

Page 19: JaLena Slack, jalena.slack@gmail

6C

B

Juan finished reading 32 pages of his 80 page book. What percent of the book is this?

A. 32%B. 40% C. 80%D. 256%

Page 20: JaLena Slack, jalena.slack@gmail

7A The voter turnouts at the 3 election sites were 744, 866, and 999.Which expression shows the best way to estimate the total number of voters?

A. 700 + 800 + 900B. 800 + 900 + 1,000C. 700 + 800 + 1,000D. 700 + 900 + 1,000

D

Page 21: JaLena Slack, jalena.slack@gmail

7B The basketball team scored 83, 77, and 64 points in their last 3 games.Which expression shows the best way to estimate the total points scored in these 3 games?

A. 83 + 80 + 60B. 90 + 70 + 60C. 80 + 80 + 60D. 80 + 80 + 70

C

Page 22: JaLena Slack, jalena.slack@gmail

7C The last 3 days the stock market closed +81, -72, and +17.Estimate the overall change in the stock market.

A. 10B. 20C. 30D. 40

C

Page 23: JaLena Slack, jalena.slack@gmail

8A Which point is (2, 0)?A. AB. BC. C D. D

What are the coordinates of C?A. (0 , 2)B. (-2 , 0)C. (2 , 0)D. (0 , -2)

B

D

Page 24: JaLena Slack, jalena.slack@gmail

8B Which point is (-3,0)?A. AB. BC. C D. D

What are the coordinates of A?A. (0 , 3)B. (-3 , 0)C. (3 , 0)D. (0 , -3)

D

A

Page 25: JaLena Slack, jalena.slack@gmail

8C Which point is (-1,3)?A. AB. BC. C D. D

What are the coordinates of C?A. (1 , 2)B. (1 , -2)C. (-2 , 1)D. (2 , -2)

A

B

Page 26: JaLena Slack, jalena.slack@gmail

9A What is the perimeter of rectangle ABCD?

B

A. 12 unitsB. 24 unitsC. 35 unitsD. 48 units

Page 27: JaLena Slack, jalena.slack@gmail

9B What is the area of rectangle ABCD?

A. 12 sq. units

B. 24 sq. units

C. 35 sq. units

D. 48 sq. units

C

Page 28: JaLena Slack, jalena.slack@gmail

9C What is the distance between A and B?

A. 6 unitsB. 7 unitsC. 8 unitsD. 9 units

B

Page 29: JaLena Slack, jalena.slack@gmail

10A

D

What transformation of ABCD will create EFGH?

A. dilationB. rotationC. reflectionD. translation

Page 30: JaLena Slack, jalena.slack@gmail

10B

B

A. dilationB. rotationC. reflectionD. translation

What transformation of triangle ABC will create triangle DEF?

Page 31: JaLena Slack, jalena.slack@gmail

10C What transformation of triangle ABC will create triangle DEF?

C

A. dilationB. rotationC. reflectionD. translation

Page 32: JaLena Slack, jalena.slack@gmail

11A What is the area of the circle?

A. 12.56 sq. unitsB. 18.84 sq. units A. 28.26 sq. unitsD. 37.68 sq. units

C

Page 33: JaLena Slack, jalena.slack@gmail

11B What is the area of the circle?

A. 3.14 sq. unitsB. 6.28 sq. units A. 12.56 sq. unitsD. 25.12 sq. units

C

Page 34: JaLena Slack, jalena.slack@gmail

11C What is the circumference of the circle?

A. 3.14 units

B. 6.28 units

C. 12.56 units

D. 25.12 units

C

Page 35: JaLena Slack, jalena.slack@gmail

12A The school is purchasing $12 shirts and $9 hats. Which algebraic expression could be used to find the amount of money spent if the school purchased x shirts and y hats?

A. x + y

B. 12x + y

C. 21xy

D. 12x + 9y

D

Page 36: JaLena Slack, jalena.slack@gmail

12B A company charges $.75 to use their computers. In addition, they charge $.15 for each minute online. Which algebraic expression could be used to find the amount of money the company charges for x minutes?

A. .15 + .75

B. .75 + .15x

C. .15x (.75)

D. .75x + .15

B

Page 37: JaLena Slack, jalena.slack@gmail

12C A car rental business charges a basic rate of $42 plus $17 for each day rented. Which expression could be used to find the amount of money the company charges for x days?

A. 42 + 17

A. 42x + 17

B. 42 + 17x

D. x(42+ 17)

C

Page 38: JaLena Slack, jalena.slack@gmail

13A Tom’s window cleaning business makes a minimum of $27 dollars for each house. Which inequality represents the dollars, d, that Tom makes per house?

A. d > 27B. d < 27C. d ≥ 27D. d ≤ 27

C

Page 39: JaLena Slack, jalena.slack@gmail

13B Juan’s walk around the school was completed in less than 451 steps. Which inequality represents the number of steps, s, that Juan took?

A. s > 451B. s < 451C. s = 451D. s ≤ 451

B

Page 40: JaLena Slack, jalena.slack@gmail

13C More than 73 students were absent from school. Which inequality represents the number of absent students, s, in the school?

A. s > 73B. s > 74C. s < 73D. s ≥ 73

A

Page 41: JaLena Slack, jalena.slack@gmail

14AThe city purchased trees at $85 each. The total cost for the city was $2720. How many trees did the city purchase?

A. 32B. 33A. 85 D. 2635

A

Page 42: JaLena Slack, jalena.slack@gmail

14B A librarian purchased 7 books for $18 each and some magazines for $5 each. The librarian spent a total of $186. Which equation shows how many magazines, m, were purchased?

A. 7 + 18 + 5m = 186B. 7(18) = 186 + 5mC. 186 = 7(18) – 5mD. 186 = 7(18) + 5m

D

Page 43: JaLena Slack, jalena.slack@gmail

14C The college had 4,200 stadium seats to rent for the football game. Only 467 seats were not rented. How many stadium seats were rented?

A. 4,667B. 4,267C. 3733D. 3743

C

Page 44: JaLena Slack, jalena.slack@gmail

15A Evaluate the expression when x = 4, y = 7, and z = 3

D

Page 45: JaLena Slack, jalena.slack@gmail

15B

C

Evaluate the expression when x = 4, y = 7, and z = 3 x – 28 ÷ y

Page 46: JaLena Slack, jalena.slack@gmail

15C

A. 5.5B. 9.5C. 11D. 15

C

Evaluate the expression when x = 4, y = 7, and z = 3

Page 47: JaLena Slack, jalena.slack@gmail

16A What is usually the first step in solving this equation?

A. Multiply both sides of the equation by 7.B. Subtract 2 from both sides of the equationC. Add 2 to both sides of the equationD. Subtract 14 from both sides of the equation

B

Page 48: JaLena Slack, jalena.slack@gmail

16BSolve this equation.5x + 2 = 37

7

Page 49: JaLena Slack, jalena.slack@gmail

16C Solve this equation.

39

Page 50: JaLena Slack, jalena.slack@gmail

17A

C

Solve for m:

A. m < 23B. m > 23C. m ≤ 23D. m ≤ 191

Page 51: JaLena Slack, jalena.slack@gmail

17B

A

Solve for x:

A. x ≤ -10B. x < -10C. x ≤ 3D. x ≤ -7

Page 52: JaLena Slack, jalena.slack@gmail

17C

A. a > -4.1B. a > -.7C. a > 3.1D. a > 4.1

D

Solve for a:a – 2.4 > 1.7

Page 53: JaLena Slack, jalena.slack@gmail

18A

How many more 5th grade students chose apples over grapes?

BA. 0B. 2C. 6D. 8

Page 54: JaLena Slack, jalena.slack@gmail

18B

What percent of the students chose beans as their favorite vegetable?

A. 15% B. 20% C. 25% D. 40%

C

Page 55: JaLena Slack, jalena.slack@gmail

18C

Which month had the most combined, cars and trucks, total sales?

A. April B. February C. May D. June

C

Page 56: JaLena Slack, jalena.slack@gmail

19A

What is the median of the list of numbers?What is the mean of the list of numbers?What is the mode of the list of numbers?What is the range of the list of numbers?

2

Use the set of numbers below to answer the question.

324

Page 57: JaLena Slack, jalena.slack@gmail

19B Use the set of numbers below to answer the question.

What is the median of the list of numbers?What is the mean of the list of numbers?What is the mode of the list of numbers?What is the range of the list of numbers?

4545

Page 58: JaLena Slack, jalena.slack@gmail

19C Use the set of numbers below to answer the question.

What is the median of the list of numbers?What is the mean of the list of numbers?What is the mode of the list of numbers?What is the range of the list of numbers?

3.5433

Page 59: JaLena Slack, jalena.slack@gmail

20A One bucket has 7 red balls and 3 white balls. A second bucket has 2 green balls and 8 pink balls. A ball is randomly selected from each bucket. What is the probability of selecting a red ball and a pink ball?

A. 0.14

B. 0.24

A. 0.56

B. 0.63

C

Page 60: JaLena Slack, jalena.slack@gmail

20B

A

One bucket has 7 red balls and 3 white balls. A second bucket has 2 green balls and 8 pink balls. A ball is randomly selected from each bucket. What is the probability of selecting a red ball and a green ball?

A. 0.14

B. 0.24

A. 0.56

B. 0.63

Page 61: JaLena Slack, jalena.slack@gmail

20C

B

One bucket has 7 red balls and 3 white balls. A second bucket has 2 green balls and 8 pink balls. A ball is randomly selected from each bucket. What is the probability of selecting a white ball and a pink ball?

A. 0.14

B. 0.24

A. 0.56

B. 0.63

Page 62: JaLena Slack, jalena.slack@gmail

21A Students are given a colored spinner divided equally between yellow, brown, black, and blue sections. Students spin the spinner 100 times and collect the data in a chart. Which statement reflects the relationship between the experimental and theoretical probability of the spinner landing on yellow.

A. There is not enough information to calculate the experimental probability.

B. The experimental probability is

greater than the theoretical probability.

C. The experimental probability and

theoretical probability are equal.D. The experimental probability is less than the theoretical probability.

C

Page 63: JaLena Slack, jalena.slack@gmail

21B

B

Students are given a coin, which has heads on one side and tails on the other side. Students toss the coin 100 times and record the results of their coin tosses. Which statement reflects the relationship between the experimental and theoretical probability of the coin toss resulting in a “Tails?”

A. There is not enough information to calculate the experimental probability.

B. The experimental probability is

greater than the theoretical probability.

C. The experimental probability and

theoretical probability are equal.D. The experimental probability is less than the theoretical probability.

Page 64: JaLena Slack, jalena.slack@gmail

21C

D

Students are given a number cube with each of 1, 2, 3, 4, 5, and 6 appearing on one of the faces of the cube. Students toss the number cube 60 times and record the results of their number cube tosses. Which statement reflects the relationship between the experimental and theoretical probability of the cube resulting in a “1?”

A. There is not enough information to calculate the experimental probability.

B. The experimental probability is

greater than the theoretical probability.

C. The experimental probability and

theoretical probability are equal.D. The experimental probability is less than the theoretical probability.

Page 65: JaLena Slack, jalena.slack@gmail

22AWhich of the following are integers?

-2, 3.7, 5, 4.2, -0.8

-2 and 5

Page 66: JaLena Slack, jalena.slack@gmail

22BWrite all the sets to which the following number belongs. Choose from irrational, rational, whole, or natural numbers or integers.

¼

Rational

Page 67: JaLena Slack, jalena.slack@gmail

22CWrite all the sets to which the following number belongs. Choose from irrational, rational, whole, or natural numbers or integers.

-8

Integers and rational

Page 68: JaLena Slack, jalena.slack@gmail

23A

Find the least common multiple of 5 and 12.

60

Page 69: JaLena Slack, jalena.slack@gmail

23BWhat is the greatest common factor of 8 and 32?

8

Page 70: JaLena Slack, jalena.slack@gmail

23CWrite the prime factorization of 150. Use exponents where possible.

2 ∙ 3 ∙ 52

Page 71: JaLena Slack, jalena.slack@gmail

24A What multiplication problem does the model below represent?

5/6 • ½ = 5/12

Page 72: JaLena Slack, jalena.slack@gmail

24BUse numbers and symbols to write and solve:

The quotient of two-sevenths and one-ninth.

2/7 ÷ 1/9 = 2 4/7

Page 73: JaLena Slack, jalena.slack@gmail

24CYou can job ¼ mile in 2 minutes. How long will it take you to jog 3 miles?

(2 ÷ ¼) ∙ 3 = 24 minutes

Page 74: JaLena Slack, jalena.slack@gmail

25A Write an expression for the model. Then find the product.

.3 • .2 = .6

Page 75: JaLena Slack, jalena.slack@gmail

25BWrite an expression for the model. Then find the quotient.

.6 ÷ .2 = 3

Page 76: JaLena Slack, jalena.slack@gmail

25CWrite an expression for the model. Then find the quotient.

.6 ÷ .3 = 2

Page 77: JaLena Slack, jalena.slack@gmail

26AWrite an expression for the model. Then find the sum.

-3 + 7 = 4

Page 78: JaLena Slack, jalena.slack@gmail

26BWrite an expression for the model. Then find the difference.

= positive = negative

4 – (-2) = 6

Page 79: JaLena Slack, jalena.slack@gmail

26COn Tuesday, Gigi borrowed $12 from her sister. The next day she paid $7. Then on Friday she borrowed $4 more. How much did Gigi owe then?

-12 + 7 – 4 = -$9, she owes $9

Page 80: JaLena Slack, jalena.slack@gmail

27A∆ ABC is similar to ∆ XYZ.

B corresponds to ___.∠

∠Y

A

ZY

X

CB

Page 81: JaLena Slack, jalena.slack@gmail

27BA man who is 6 feet tall casts a shadow that is 4 feet long. A nearby tree has a shadow 30 feet long. How tall is the tree?

45 feet

Page 82: JaLena Slack, jalena.slack@gmail

27C These are congruent triangles. Name the congruent angles.

∠A Y, B X, C ≅∠ ∠ ≅∠ ∠Z≅∠

Page 83: JaLena Slack, jalena.slack@gmail

28AWhich angels are complementary?

∠A and G∠

A = 42°Y = 138°

Page 84: JaLena Slack, jalena.slack@gmail

28BWhich angels are supplementary?

∠A and Y∠

A = 42°Y = 138°

Page 85: JaLena Slack, jalena.slack@gmail

28CName a pair of vertical angels.

∠1 and 3∠

12

345

Page 86: JaLena Slack, jalena.slack@gmail

29A What quadrant is point Q in?

Quadrant I

Page 87: JaLena Slack, jalena.slack@gmail

29B

What quadrant is (4, -4) in?

Quadrant IV

Page 88: JaLena Slack, jalena.slack@gmail

29CWhat quadrant would a point with a negative x value and a positive y value be in?

Quadrant II

Page 89: JaLena Slack, jalena.slack@gmail

30ADraw the line(s) of symmetry. If there are no lines of symmetry, write none.

Draw a line from left to right through the center.

Page 90: JaLena Slack, jalena.slack@gmail

30BHow many lines of symmetry does a square have?

4 lines

Page 91: JaLena Slack, jalena.slack@gmail

30CWhat are the coordinates of (6, -1)’s image after it is reflected over the x-axis?

(6, 1)

Page 92: JaLena Slack, jalena.slack@gmail

31AIdentify at least 2 shapes in the photo.

Triangle, rectangle, square

Page 93: JaLena Slack, jalena.slack@gmail

31BIdentify the 2 shapes that make up a pyramid.

Square (rectangle) and triangle

Page 94: JaLena Slack, jalena.slack@gmail

31C Identify at least 2 shapes in the photo of a crop circle.

Star, triangle, rhombus, circle

Page 95: JaLena Slack, jalena.slack@gmail

32A

Sketch a rectangular prism.

Page 96: JaLena Slack, jalena.slack@gmail

32B

Sketch a cylinder.

Page 97: JaLena Slack, jalena.slack@gmail

32C

Sketch a triangular prism.

Page 98: JaLena Slack, jalena.slack@gmail

33A

Use a protractor to draw a 40° angle.

Page 99: JaLena Slack, jalena.slack@gmail

33B

Use a protractor to draw a 125° angle.

Page 100: JaLena Slack, jalena.slack@gmail

33C

Use a protractor to draw a 80° angle.

Page 101: JaLena Slack, jalena.slack@gmail

34AIdentify the following angle as straight, obtuse, right, or acute.

acute

Page 102: JaLena Slack, jalena.slack@gmail

34BIdentify the following angle as straight, obtuse, right or acute.

obtuse

Page 103: JaLena Slack, jalena.slack@gmail

34CIdentify the following angle as straight, obtuse, right, or acute.

right

Page 104: JaLena Slack, jalena.slack@gmail

35AEstimate the width of an open book.

1 centimeter 1 yard 1 foot 1 meter

1 foot

Page 105: JaLena Slack, jalena.slack@gmail

35BYou are having four friends over to watch a movie. Estimate how much lemonade you should make so each of you can have at least two glasses.

3 gallons 3 liters 3 ounces 3 milliliters

3 liters

Page 106: JaLena Slack, jalena.slack@gmail

35CEstimate the weight of a new born baby.

30 pounds 30 grams 3 tons 3 kilograms

3 kilograms

Page 107: JaLena Slack, jalena.slack@gmail

36AComplete the following. Fill in the blanks.

3c + 21 = 3( __ + __ )

3c + 21 = 3 ( c + 7 )

Page 108: JaLena Slack, jalena.slack@gmail

36BComplete the following. Fill in the blanks.

2x + 4 + 3x = __ x + __

2x + 4 + 3x = 5x + 4

Page 109: JaLena Slack, jalena.slack@gmail

36CComplete the following. Fill in the blanks.

4x + 12 = 4( __ + __ )

4x + 12 = 4( x + 3 )

Page 110: JaLena Slack, jalena.slack@gmail

37AWrite an algebraic expression for: Mom made 3 dozen cookies, then Ruff our dog ate some of them.

3(12) – x or 36 - x

Page 111: JaLena Slack, jalena.slack@gmail

37BWrite an algebraic equation for:

The perimeter of an isosceles triangle is 32. The congruent sides measure 10 cm, what is the measure of the third side?

10 + 10 + x = 32 or 2(10) + x = 32

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37CWrite an algebraic expression for:

A group of friends met at a game, then 3 had to leave before halftime.

x - 3

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38A The number line shows that the sum of -4 and 4 is 0. Two numbers whose sum is 0 are:

A.The absolute values of the numbers

B.Additive inverses

C.Multiplicative inverses

D.Opposites

B

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38BWhat is the additive inverse of (-9)?

9

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38CFill in the blank to make a true statement.

To subtract an integer, add its _____.

opposite

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39A

Use symbols and variables to show the distribute property.

a(b + c) = ab + ac or a(b - c) = ab - ac

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39BUse the distribute property to simplify:

7(5 + c)

35 + 5c

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39C

Simplify : .7(x - .4)

.7x - .28

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40AIn solving the equation: 3x + 4 = 25, what property do you use to do the step

3x + 4 – 4 = 25 – 4

Subtraction Property of Equality

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40BIn solving the equation: 2x – 6 = 30, what property do you use to do the step

2x – 6 + 6 = 30 + 6

Addition property of equality

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40CIn solving the equation: , what property do you use to do the step

Multiplication property of equality

x5

25

5 x5

25 5

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41A

A population is a group of objects or people. A part of a population is a _______.

Sample

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41BWhich sample is more likely to be random? You want to survey Mothers about the snack they buy for their toddlers. Would you:

a.Ask women entering a mall.

b.Ask women dropping children off at daycare.

B

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41CYou want to know which stores in a mall are shopped the most. You walked around the mall and survey 40 shoppers. What was the population of your survey, and what was the sample?

Population – everyone at the mall

Sample – the 40 shoppers you surveyed

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42AIs the following question fair or biased? Explain your answer.

Do you think soft, cuddly cats make better pets than big, rowdy dogs?

Biased, the description makes one pet sound better than the other.

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42BIs the following question fair or biased? Explain your answer.

Do you prefer movies or TV shows?

Fair, the question does not influence the answer.

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42CWrite a fair question for a survey about a group’s choice of fast food.

Example: What is your favorite fast food?

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43AWould you use a survey or a simulation to decide how many field goals a kicker will during a football game?

Simulation

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43BWould you use a survey or a simulation to decide who will be voted in as the new mayor?

survey

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43CWould you use a survey or a simulation to predict how many defective parts will come off an assembly line during an 8 hour shift?

simulation

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44AA survey of voters before the primary showed candidate Jones had 53% of the votes, while candidate Smith trailed with only 34% of the vote. The survey was conducted in Jones’ home town. Do you think you can make an accurate prediction of who will win the election?

No

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44BA survey of voters before the primary showed candidate Smith trailed with only 34% of the vote. The survey was a phone poll of registered voters across the state. Do you think you can make an accurate prediction of who will win the election? Why?

Yes, the callers are random.

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44CTo determine what kind of sport junior high school students like to watch, 100 students are randomly selected from each of four junior high schools in a city. Of these, 47% like to watch football. Thesuperintendent concludes that about half of all junior high students like to watch football.Do you think you can make an accurate prediction of the most sport is most popular? Why?

Yes, the population reflects the sample.

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45A

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45B

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45C

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46A

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46B

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46C

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47A

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47B

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47C

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48A

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48B

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48C

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49A

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49B

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49C

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50A

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50B

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50C

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51A

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51B

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51C

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52A

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52B

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52C

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53A

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53B

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53C

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54A

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54B

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54C

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55A

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55B

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55C

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56A

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56B

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56C

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57A

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57B

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57C

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58A

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58B

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58C

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59A

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59B

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59C

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60A

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60B

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60C

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61A

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61B

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61C

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62A

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62B

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62C

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63A

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63B

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63C

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64A

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64B

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64C

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