Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you travel 60 miles in 2 hours, the unit rate is 30 miles per hour.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if you have 15 apples for $3, the unit rate is $3 ÷ 15 apples = $0.20 per apple.

Front

If 4 gallons of milk cost $8, what is the cost per gallon?

Back

$8 ÷ 4 gallons = $2 per gallon.

Front

What is the unit rate of 50 miles in 2 hours?

Back

50 miles ÷ 2 hours = 25 miles per hour.

Front

If a car travels 120 miles on 3 gallons of gas, what is the miles per gallon?

Back

120 miles ÷ 3 gallons = 40 miles per gallon.

Front

What is the unit rate of 10 pounds of rice for $20?

Back

$20 ÷ 10 pounds = $2 per pound.

Front

If you earn $60 for 4 hours of work, what is your hourly wage?

Back

$60 ÷ 4 hours = $15 per hour.

Front

How do you find the price per item?

Back

To find the price per item, divide the total price by the number of items. For example, if 12 cookies cost $6, the price per cookie is $6 ÷ 12 = $0.50.

Front

If a recipe calls for 3 cups of flour for 12 cookies, how much flour is needed per cookie?

Back

3 cups ÷ 12 cookies = 0.25 cups of flour per cookie.

Front

What is the unit rate of 90 minutes for 3 games?

Back

90 minutes ÷ 3 games = 30 minutes per game.