Quiz about 7th Ratios & Proportional Relationships Review

Question 1

The Williams family bought four concert tickets for $252.  What was the price per ticket?

Accepted Answer

$63.00

Answer

$60.00

Answer

$6.30

Answer

$62.00

Question 2

An eight pack of juice boxes costs $4.79, and a 12 pack of juice boxes cost $6.59. Use this information to calculate the better buy.

Accepted Answer

12 pack

Answer

8 pack

Question 3

A car travels 320 miles in 8 hours. What is the unit rate?

Accepted Answer

40 miles per hour

Answer

45 miles per hour

Answer

80 miles per hour

Answer

60 miles per hour

Question 4

What makes a graph proportional?

Accepted Answer

Straight line and passes through (0,0)

Answer

Straight Line

Answer

The line goes through (0,0)

Answer

Curvy line

Question 5

Is the graph proportional or non proportional?

Accepted Answer

non proportional

Answer

proportional

Question 6

What is the constant of proportionality?

Accepted Answer

15

Answer

5

Answer

75

Answer

25

Question 7

What is the constant of proportionality?

Accepted Answer

$9

Answer

$3

Answer

$4

Answer

$2

Question 8

Which equation matches the graph?

Accepted Answer

y = 8x

Answer

y = 1x

Answer

y = 3x

Answer

y = 16x

Question 9

Which graph is non-proportional?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 10

Does this table represent a proportional relationship?

Accepted Answer

No, it's not proportional

Answer

Yes, it's proportional

Answer

Sometimes it's proportional

Question 11

Proportional relationships are...

Accepted Answer

Multiplicative--x times something gives you y

Answer

Additive--x plus something gives you y

Question 12

Proportional relationships...

Accepted Answer

are equivalent ratios

Answer

are proper fractions

Answer

are additive

Answer

are not multiplicative

Question 13

Mr. Carter is baking bread. The recipe calls for 2 cups of flour for every cup of water. If he doubles the recipe, will the new amount of flour and water be proportional to the original recipe?

Accepted Answer

Yes, it's proportional

Answer

No, it's not proportional

Question 14

If Mrs. Carter walks her dog Esteban 1 mile in 12 minutes and 2 miles in 20 minutes, are Mrs. Carter and Esteban walking at a proportional rate?

Accepted Answer

No, it's not proportional

Answer

Yes, it's proportional

Question 15

Samantha earned $90 for working six hours at a blueberry farm. What was Samantha's rate in dollars per hour?

Accepted Answer

$15 per hour

Answer

$20 per hour

Answer

$12 per hour

Answer

$30 per hour

Question 16

At a bake sale, you can buy 3 cookies for $2.00. What would be the cost of 15 cookies?

Accepted Answer

$10

Answer

$12

Answer

$5

Answer

$6

Question 17

There are six hats and seven mittens. What is the ratio of mittens to total?

Accepted Answer

7:13

Answer

6:7

Answer

7:6

Answer

13:7

Question 18

Simplify the ratio of
35 : 14

Accepted Answer

5 : 2

Answer

2 : 5

Answer

3 : 1

Answer

35: 14

Question 19

What is the constant of proportionality?

Accepted Answer

18 gallons / 1 minute

Answer

24 gallons / 1 minute

Answer

16 gallons / 1 minute

Answer

None of the above

Question 20

Which of the following examples shows one method of finding the constant of proportionality?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 21

What does k represent in the equation y = kx?

Accepted Answer

constant of proportionality

Answer

constant rate of change

Answer

the proportionality

Answer

x/y

Question 22

In the equation y = 14x, what is the constant of proportionality?

Accepted Answer

14

Answer

y

Answer

x

Question 23

Identify the constant of proportionality.

Accepted Answer

k = 1.50

Answer

k = 2

Answer

k = 3

Answer

k = 2/3

Answer

none (not proportional)

Question 24

What is 10% of 50?

Accepted Answer

5

Answer

10

Answer

100

Answer

20

Question 25

20 is 25% of what number?

Accepted Answer

80

Answer

25

Answer

100

Answer

50

Question 26

A store offers a discount of $43 when you buy a painting for $100. What is the percent discount?

Accepted Answer

43%

Answer

50%

Answer

57%

Answer

100%

Question 27

Katherine notices that 13 of her 25 fish have a white spot. What percent of her fish has a white spot?

Accepted Answer

52%

Answer

13%

Answer

25%

Answer

26%

Question 28

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

Accepted Answer

80

Answer

800

Answer

240

Answer

40

Question 29

Of the 60 books on a bookshelf, 24 are nonfiction.  What percent of the books are nonfiction?

Accepted Answer

40%

Answer

25%

Answer

250%

Answer

.40%

Question 30

Daniel has dinner at a restaurant and the cost of his meal is $28. Because of the service, he wants to leave a 20% tip. How much should he leave for the tip?

Accepted Answer

5.60

Answer

12.00

Answer

4.60

Answer

2.50

Question 31

A TV that normally cost $800 is on sale for 33% off.  There is a 6% sales tax on the purchase.  What is the final cost of the TV?

Accepted Answer

$568.16

Answer

$536.00

Answer

$279.84

Answer

$321.60

Question 32

18 is 40% of what number? Solve using a proportion.

Accepted Answer

45

Answer

18

Answer

7.2

Answer

40

Question 33

Last week, you finished level 2 of a video game in 32 minutes. Today, you finished level 2 in 28 minutes. What is your percent of change?

Accepted Answer

Decrease 12.5%

Answer

Increase 12.5%

Answer

Increase 4%

Answer

Decrease 4%

Question 34

Emilio borrows $1200 from a bank with 8% simple interest per year.  How much will he have to pay back total in 2 years?

Accepted Answer

$1392

Answer

$150

Answer

$192

Answer

$1350

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