Proportions test review

An object travels 8 miles in 20 minutes at a constant speed. What is the object’s speed in miles per hour? A. 32 B. 28 C. 24 D. 20

• 32

• 28

• 24

• 20

Using the graph below, what is the constant of proportionality?

• 2.5

• 4.0

• 4.5

• 7.0

3. A recipe requires x number of cups of flour to produce y number of servings. Using the table, what is the number of servings per cup of flour?

• 6 1/2

• 7

• 8

• 8 1/2

The graph below shows the amount of money Janet earned at her new job. How much does Janet earn per hour

• 7.50

• 10.00

• 10.50

• 15.00

The table below shows the amount of sugar Peggy used to make different amounts of chocolate chip cookies. What is the constant of proportionality for the amount of sugar per dozen cookies?

• 3/8 cup

• 1/2 cup

• 5/8 cup

• 3/4 cup

Sharon paid $14.40 for 3 1/4 yards of fabric. About how much did Sharon pay per yard of fabric?

• $4.68

• $4.43

• $4.10

• $3.25

The graph below shows the cost of tickets to an amusement park. According to the graph, what would be the cost of one ticket?

• $25

• $35

• $50

• $60

What is the constant of proportionality for the line on the graph below?

• 2

• 1/2

• - 1/2

• -2

Jesse is baking several cakes for a bake sale. A 2 1/4 pound bag of flour is enough to make 3 cakes. How much flour is needed to make 1 cake?

• 3/4 cup flour

• 7/8 cup flour

• 1 1/4 cups flour

• 1 3/4 cups flour

A 10 foot by 12 foot wall has two windows that measure 3 feet by 5 feet each. If the windows are not to be painted, what percent of the wall will be painted.

• 25%

• 65%

• 75%

• 90%