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 1 hour, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity of one item by the quantity of another item. For example, if you buy 12 apples for $3, the unit rate is $3 ÷ 12 apples = $0.25 per apple.

Front

What is the unit rate of 15 pizzas for $97.50?

Back

$6.50 per pizza.

Front

If Will spent $3.75 for 3 pounds of granola, what is the unit rate?

Back

$1.25 per pound.

Front

What is the unit rate for rainfall of 6 cm in 3 hours?

Back

2 cm per hour.

Front

If a car travels 180 miles in 3 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.

Front

What is the unit rate of 4 paws per dog?

Back

4 paws per dog.

Front

How do you find the unit cost of an item?

Back

To find the unit cost, divide the total cost by the number of items. For example, if 10 notebooks cost $20, the unit cost is $20 ÷ 10 = $2 per notebook.

Front

What is the unit rate of 90 miles in 2 hours?

Back

45 miles per hour.

Front

If a recipe calls for 4 cups of flour to make 2 cakes, what is the unit rate of flour per cake?

Back

2 cups of flour per cake.