Proportions Ratios Rate

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

• A
• B
• C
• D

Does this graph represent a proportional relationship?  

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

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

• Yes, because it intersects the y axis.

• No, because it intersects the x axis.

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

• y

• x

• 14

If the ratio of boys to girls in a class is 3:4, how many boys are there if there are 20 girls?

• 15

• 25

• 10

• 30

What is the ratio of 30 minutes to 2 hours in simplest form?

If the ratio of cats to dogs is 2:3, how many cats are there if there are 18 dogs?

• 12

• 24

• 6

• 30

A scale drawing of a park has a scale of 1 inch : 100 feet. If the actual length of the park is 300 feet, how long is it on the drawing?

• 2 inches

• 3 inches

• 4 inches

• 5 inches

• A

• B

• C

• D

What is the ratio of 30 minutes to 2 hours?

• 1:4

• 1:2

• 15:1

• 1:8