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Unit 7 Review: Proportions and Percentages

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

Solve for the variable.  x12=69\frac{x}{12}=\frac{6}{9}  

a)

8

b)

9

c)

72

d)

12

2.

What is the percent of change in this problem? There are 24 teachers on the 6th grade team. Next year, they will have 30 teachers on the team.

a)

25% increase

b)

25% decrease

c)

20% increase

d)

20% decrease

3.

It took Ella 6.5 hours to travel 324 miles. If she kept a consistent speed and made no stops, about how fast was she traveling?

a)

50 mph

b)

0.02 mph

c)

2106 mph

d)

65 mph

4.

Right now, 15 gallons of gas costs $25.80. If your car has a 12 gallon tank, how much would it cost to fill your tank from completely empty to full?

a)

$6.98

b)

$1.72

c)

$20.64

d)

$18.36

5.

Right now, 15 gallons of gas costs $25.80. You only have a $10 bill in your wallet. How many gallons of gas will that get you?

a)

8.72 gal

b)

5.81 gal

c)

6 gal

d)

4.73 gal

6.

The two triangles in this image are similar. Use any method you've learned in this unit to find the value of x

a)

10

b)

12

c)

6.4

d)

8

7.

Alicia can run 4 laps around the track in 7.41 minutes. What is her unit rate (laps per minute)?

a)

1.85 laps/min

b)

0.54 laps/min

c)

2.13 laps/min

d)

3.41 laps/min

8.

Alicia can run 4 laps around the track in 7.41 minutes. How long does it take her to run each lap?

a)

1.85 minutes

b)

0.54 minutes

c)

2.13 minutes

d)

3.41 minutes

9.

Alicia can run 4 laps around the track in 7.41 minutes. How long would it take her to run 7 laps?

a)

12.96 min

b)

14.82 min

c)

3.77 min

d)

9.87 min

10.

Cora jarred 12 liters of jam after 4 days. How many days does Cora need to spend making jam if she wants to jar 18 liters of jam in all?

a)

6 days

b)

4 days

c)

3 days

d)

8 days

11.

Nora scored 216 points by collecting 2 coins. In all, how many coins does Nora have to collect to score a total of 540 points?

a)

7 coins

b)

5 coins

c)

2.5 coins

d)

3 coins

12.

Solve for the variable.  56=x15\frac{5}{6}=\frac{x}{15}  

a)

14

b)

5

c)

12.5

d)

10.25

13.

Marta was shopping online with a 30% off coupon code. She found a pair of shoes that regularly cost $85. How much will Marta pay if she uses the coupon (ignoring tax)?

a)

$25.50

b)

$59.50

c)

$76.50

d)

$121.43

14.

The Keller's were having dinner at a restaurant. The check was $43.76. Mrs. Keller likes to leave an 18% tip for the server. How much would that tip be?

a)

$18.00

b)

$51.64

c)

$35.88

d)

$7.88

15.

The Keller's were having dinner at a restaurant. The check was $43.76. Mrs. Keller likes to leave an 18% tip for the server. How much will the Keller's pay in total?

a)

$7.88

b)

$51.64

c)

$43.76

d)

$48.95

16.

Charlie had dinner out and can't remember how much his delicious steak cost! His credit card shows that he paid $34.93 in total, but that included the 20% tip he left, too. What was the price of his steak dinner (before the tip was added)?

a)

$29.11

b)

$27.94

c)

$6.99

d)

$41.92

17.

Your favorite shampoo brand changed the size of their bottles from 18 fl. oz to 22.5 fl oz. What value would go into box (a) on this linear model?

a)

25%

b)

4

c)

4.5

d)

20%

18.

Your favorite shampoo brand changed the size of their bottles from 18 fl. oz to 22.5 fl oz. What value would go into box (b) on this linear model?

a)

125%

b)

20%

c)

100%

d)

22.5

19.

Your favorite shampoo brand changed the size of their bottles from 18 fl. oz to 22.5 fl oz. What value would go into box (c) on this linear model?

a)

4.5

b)

25%

c)

20%

d)

100%

20.

Your favorite shampoo brand changed the size of their bottles from 18 fl. oz to 22.5 fl oz. What is the percent change?

a)

20% increase

b)

20% decrease

c)

25% increase

d)

25% decrease