Unit 9 Ratios, Rates, and Proportions Review

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Find the Unit Rate.
405 rotations in 5 minutes   

• 81 rotations per minute
• 73 rotations per minute
• 18 rotations per minute
• 810 rotations in 10 minutes

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.7.RP.A.2A

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15
• c=18
• c=21
• c=16

Tags

CCSS.7.RP.A.3

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

Tags

CCSS.6.RP.A.3B

Josh bought a pizza with eight slices of pizza for $12. What is the cost of a slice of pizza?

• $12
• $1.50
• $3
• $1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

CCSS.6.EE.B.6

CCSS.6.EE.B.7

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

Tags

CCSS.7.RP.A.2A

Madeline ran 21.7 miles in 7 hours. What is the unit rate? 

• 21.7 miles per hour
• 3.1 miles per hour
• .32 miles per hour
• 21.7
  7

On a map, if one centimeter represents 25 kilometers, how many kilometers does 7 centimeters represent?

• 175
• 185
• 200
• 220

Tags

CCSS.6.RP.A.3B