Rates Unit Rate Proportions Review

Does the table represent a proportional relationship?

• Yes.

• No.

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

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

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

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

If there are 6 diesel cars sold to every 3 petrol cars, is it the same proportion as 2 diesel cars to every 1 petrol car? 

• Yes

• No

7 out of 10 women prefer Brand A moisturiser and the other 3 prefer Brand B. Choose how this should be written as a ratio of Brand A to Brand B.

• 7:3

• 07:10

• 03:10

• 1
• 3

• 4
• 12

Pizzas are $10 each plus a $2 delivery fee. Is the cost proportional to the number of pizzas ordered?

• Yes, unit rate is $10

• Yes, Unit rate is $12

• No, unit rate not constant

• No, because Little Caesars is $5