Quiz about Unit 3 Test Study Guide

Question 1

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

Accepted Answer

$8 per pound

Answer

$5 per pound

Answer

$35 per pound

Answer

0.125 pounds per dollar

Question 2

8.  Find the unit rate of $97.50 for 15 pizzas.

Accepted Answer

$6.50 per pizza

Answer

$6 per pizza

Answer

$82.50 per pizza

Answer

$5.50 per pizza

Question 3

Which is the better buy? a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?

Accepted Answer

The 12 pack of Coke

Answer

The 6 pack of Coke

Answer

Neither

Answer

They are the same

Question 4

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

Accepted Answer

$25 per hour

Answer

$50 per hour

Answer

$12 per hour

Answer

$192 per hour

Question 5

Identify the constant of proportionality. Write your answer as y=kx

Accepted Answer

y = 7x

Answer

y = 14x

Answer

y = 2x

Answer

y = 6x

Question 6

Identify the constant of proportionality. Write your answer as y=kx

Accepted Answer

y = 4x

Answer

y = 16x

Answer

y = 2x

Answer

y = 8x

Question 7

Determine the constant of proportionality.

Accepted Answer

40

Answer

80

Answer

20

Answer

160

Question 8

What is the constant of proportionality?

Accepted Answer

3/10

Answer

7

Answer

3.3

Answer

14

Question 9

What is the constant of proportionality?

Accepted Answer

15

Answer

1/15

Answer

2

Answer

30

Question 10

What is the constant of proportionality?

Accepted Answer

1/4

Answer

4

Answer

2

Answer

-4

Question 11

What is the constant of proportionality?

Accepted Answer

6

Answer

1

Answer

1/6

Answer

2

Question 12

What is the constant of proportionality?

Accepted Answer

10

Answer

3

Answer

30

Answer

1/10

Question 13

Joe can run 3 2/5 miles in 7/8 of an hour. What is his speed in miles per hour?

Accepted Answer

3  31/35 mph

Answer

3  9/13 mph

Answer

119/40 mph

Answer

35/136 mph

Question 14

What is a unit rate?

Accepted Answer

A rate expressed as something per one

Answer

Two unlike things compared to each otehr

Answer

How often something occurs

Answer

A rate expressed as something per two

Question 15

Paige mows 1/6 of an acre in 1/4 hour. How many acres does Paige mow per hour?

Accepted Answer

2/3

Answer

6/4

Answer

2

Answer

3

Question 16

Sasha can mow 3/8 of an acre of grass in 3/4 an hour. How many acres of grass does Sasha mow per hour?

Accepted Answer

1/2  ac./hr.

Answer

2  ac./hr.

Answer

9/24  ac./hr.

Question 17

If a snail can move 3/10 of a meter every 1/12 hour, what is the speed of the snail, in meters per hour?

Accepted Answer

3 3/5

Answer

1/40

Answer

5/18

Answer

1 1/2

Question 18

Accepted Answer

Proportional

Answer

NonProportional

Question 19

Does this graph represent a proportional relationship?

Accepted Answer

No, because it doesn't pass through the origin.

Answer

Yes, because it doesn't pass through the origin.

Answer

Yes, because it intersects the y axis.

Answer

No, because it intersects the x axis.

Question 20

Is the graph proportional or non proportional?

Accepted Answer

non proportional

Answer

proportional

Question 21

Which graph is proportional?

Accepted Answer

All of the graphs are proportional

Answer

A

Answer

B

Answer

C and D

Question 22

REVIEW QUESTION
Which best describes the graph represented in this table?

Accepted Answer

proportional

Answer

non-proportional

Question 23

Is the graph proportional or non proportional?

Accepted Answer

non proportional

Answer

proportional

Question 24

REVIEW QUESTION
Is this table proportional or non-proportional?

Accepted Answer

Proportional

Answer

Non-Proportional

Question 25

Is the graph proportional or non proportional?

Accepted Answer

proportional

Answer

non proportional

Question 26

What is the constant of proportionality?

Accepted Answer

16

Answer

8

Answer

24

Answer

2

Question 27

Is this table proportional?

Accepted Answer

No

Answer

Yes

Question 28

Danielle used 8 centimeters of tape to wrap 4 presents. How many presents did Danielle wrap if she used 30 centimeters of tape?

Accepted Answer

15 presents

Answer

16 presents

Answer

14 presents

Answer

13 presents

Question 29

The corporate team-building event will cost $12 if it has 4 attendees. How many attendees can there be, at most, if the budget for the corporate team-building event is $15?

Accepted Answer

5 attendees

Answer

6 attendees

Answer

7 attendees

Answer

8 attendees

Question 30

Farah learned a total of 15 appetizer recipes over the course of 3 weeks of culinary school. After how many weeks of culinary school will Farah know a total of 20 appetizer recipes?

Accepted Answer

4 weeks

Answer

3 weeks

Answer

5 weeks

Answer

2 weeks

Question 31

Harold took a total of 8 quizzes over the course of 2 weeks. How many weeks of school will Harold have to attend this quarter before he will have taken a total of 20 quizzes?

Accepted Answer

5 weeks

Answer

6 weeks

Answer

7 weeks

Answer

8 weeks

Question 32

Carol spends 17 hours in a 2-week period practicing her culinary skills. How many hours does she practice in 5 weeks?

Accepted Answer

42.5 hours

Answer

35.6 hours

Answer

28.5 hours

Answer

17.5 hours

Question 33

Identify the slope of EF in triangle DEF.

Accepted Answer

1

Answer

-1

Answer

3

Answer

-3

Question 34

Identify the slope (CA) of triangle ABC.

Accepted Answer

3

Answer

1/3

Answer

-3

Answer

-1/3

Question 35

The slope of line AC is equal to $$\frac{AB}{BC}$$ . What is the measure of the slope?

Accepted Answer

Answer

Answer

Answer

Question 36

Solve for X.

Accepted Answer

2 ft

Answer

3 ft

Answer

4 ft

Answer

6 ft

Question 37

What is the slope of the line?

Accepted Answer

2/3

Answer

2

Answer

3

Answer

3/2

Question 38

When given two similar triangles on the same line, they will ALWAYS have the same _______________?

Accepted Answer

slope

Answer

y-intercept

Answer

x

Answer

y

Question 39

The slope of line CA is $$-\frac{3}{2}$$ . Which of the following is true about the slope of line XZ?

Accepted Answer

The slope of line XZ is the same as the slope of line CA because the ratios of the corresponding sides of the triangles are equivalent.

Answer

The slope of line XZ is the negative reciprocal of the slope of line CA because the triangles are flipped.

Answer

The slope of line XZ is one-half the slope of line CA because the ratio of corresponding sides between the triangles is $$\frac{1}{2}$$ .

Answer

The is no relationship between the slope of line XZ and the slope of line CA.

Question 40

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

Accepted Answer

41%

Answer

52%

Answer

42%

Answer

45%

Question 41

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter?

Accepted Answer

20%

Answer

35%

Answer

25%

Answer

30%

Question 42

Find the percent increase. Round to the nearest percent.
From $5 to $8

Accepted Answer

60%

Answer

40%

Answer

55%

Answer

65%

Question 43

Find each percent increase. Round to the nearest percent.
From 86 books to 150 books

Accepted Answer

74%

Answer

62%

Answer

81%

Answer

58%

Question 44

Mary decreased her time in the mile walk from 30 minutes to 24 minutes.  What was the percent of decrease?

Accepted Answer

20%

Answer

25%

Answer

15%

Answer

10%

Question 45

John grew 3 inches in sixth grade. If he was 4 feet and 11 inches at the start of the year. What was his percent increase?

Accepted Answer

5%

Answer

3%

Answer

4.8%

Answer

75%

Question 46

Tickets to Disney World are $100.The price is going to increase on January 1. What is the percent of change if the cost increases to a $120?

Accepted Answer

20%

Answer

25%

Answer

18%

Answer

50%

Question 47

A Chicago Cubs baseball cap costs $30.  Michael has a coupon that will save him 30% of the  price. How much money will Michael pay for the cap?

Accepted Answer

$21.00

Answer

$9.00

Answer

$22.00

Answer

$21.36

Question 48

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

Accepted Answer

120

Answer

800

Answer

180

Answer

80

Question 49

Find the sales tax only. $199.95 ipod; 9% tax

Accepted Answer

$18.00

Answer

$19.95

Answer

$ 217.95

Answer

$179.90

Question 50

A clothing store pays $15 for a shirt. The percent markup is 85%. Find the selling price. Round to nearest cent if necessary.

Accepted Answer

$27.75

Answer

$12.75

Answer

$100

Answer

$27.80

Question 51

Helen paid $8.63 for a pair of earrings, which includes 8% sales tax. How much were the earrings before tax?

Accepted Answer

$7.99

Answer

$9.32

Answer

$.69

Answer

$107.88

Question 52

Isabelle purchased a Barbie Doll. If she paid $2.40 in taxes and tax was 8% of the original price, what was the original price of the Barbie Doll?

Accepted Answer

$30

Answer

$3

Answer

$2.59

Answer

$32.40

Question 53

A pair of shoes is on sale for 25% off and now they cost $48.00. What was the original price?

Accepted Answer

$64.00

Answer

$192.00

Answer

$73.00

Answer

$36.00

Question 54

A person ate 2400 calories in a day. Of these, 36% came from fat. How many calories came from fat?

Accepted Answer

864

Answer

984

Answer

830

Answer

1142

Question 55

Sarah earns $20 in total, each day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

Accepted Answer

$6

Answer

$1.40

Answer

$0.60

Answer

$14

Question 56

The original perimeter of a rectangle is 30cm, if we enlarge it by a scale factor of 4 what is the new perimeter?

Accepted Answer

120

Answer

480

Answer

1920

Question 57

If a square's side lengths enlarged by a SF of 2, then which of the following statements about its area will be true?

Accepted Answer

The new area will be 4 times the old area.

Answer

The new area will be 16 times the old area.

Answer

The new area will be 1/4 of the old area.

Answer

The new area will be 2 times the old area.

Question 58

A rectangle has the dimensions 4cm by 5cm. A scale factor of 3 is used to enlarge the rectangle. What is the new area?

Accepted Answer

180 cm2

Answer

20 cm2

Answer

60 cm2

Answer

100 cm2

Question 59

A rectangle has the dimensions 4cm by 5cm. A scale factor of 3 is used to enlarge the rectangle. What is the new area?

Accepted Answer

180 cm2

Answer

20 cm2

Answer

60 cm2

Answer

100 cm2

Unit 3 Test Study Guide

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