Rates, Ratios, and Proportions

[Pages:2]L e s s o n Q u i z T R a n s pa r e n cy

Rates, Ratios, and Proportions

Lesson Quiz

1. In a school, the ratio of boys to girls is 4 : 3. There are 216 boys. How many girls are there?

Find each unit rate. Round to the nearest hundredth if necessary.

2. Nuts cost $10.75 for 3 pounds.

3. Sue washes 25 cars in 5 hours.

4. A car travels 180 miles in 4 hours. What is the car's speed in feet per minute?

Solve each proportion.

5.

_8__ 12

_g_ 9

6.

__3___ z 4

_2_ 8

7. A scale model of a car is 9 inches long. The scale is 1:18. How many inches long is the car it represents?

Copyright ? by Holt McDougal. All rights reserved.

22

Holt McDougal Algebra 1

L e s s o n Q u i z T R a n s pa r e n cy

Rates, Ratios, and Proportions

Lesson Quiz

1. In a school, the ratio of boys to girls is 4 : 3. There are 216 boys. How many girls are there? 162

Find each unit rate. Round to the nearest hundredth if necessary.

2. Nuts cost $10.75 for 3 pounds. $3.58/lb

3. Sue washes 25 cars in 5 hours. 5 cars/h

4. A car travels 180 miles in 4 hours. What is the car's speed in feet per minute? 3960 ft/min

Solve each proportion.

5.

_8__ 12

_g_ 9

6

6.

__3___ z 4

_2_ 8

16

7. A scale model of a car is 9 inches long. The scale is 1:18. How many inches long is the car it represents? 162 in.

Copyright ? by Holt McDougal. All rights reserved.

22

Holt McDougal Algebra 1

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