Solving Proportions Rates Ratios

In an animal shelter, the ratio of cats to dogs is 3 to 5. If there are a total of 25 dogs at the shelter, how many cats do they have?

• 15

• 18

• 21

• 32

Simplify the ratio of

20 to 25

• 1 to 5

• 2 to 5

• 3 to 5

• 4 to 5

Mason ran 3 miles in 20 minutes. What is his unit rate of miles per hour?

• 400 miles per hour

• 9 miles per hour

• 20 miles per hour

• 6.67 miles per hour

Jeff ran 6 miles in 4 hours. At this rate, how many miles will he run in 6 hours?

• 9 miles

• 4 miles

• 6 miles

• 36 miles

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

The distance that an automobile travels varies directly as the time it travels. If the car travels 280 miles in 7 hours, how far will it travel in 12 hours?

• 480

• 1960

• 84

• 25

• 3
• 5.3
• 1.08
• 27

• 27
• 12
• 1.333
• 3.67

Solve the proportion:

• 15

• 5

• 10

• 12

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90