Unit Rates

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, like miles per hour or dollars per pound.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if you have 10 apples for $5, the unit rate is $5 ÷ 10 apples = $0.50 per apple.

Front

If Ernie travels 195 miles in 3 hours, what is his speed in miles per hour?

Back

To find the speed, divide the distance by the time: 195 miles ÷ 3 hours = 65 miles per hour.

Front

If Will spent $3.75 for 3 pounds of granola, how much does he pay per pound?

Back

To find the cost per pound, divide the total cost by the number of pounds: $3.75 ÷ 3 pounds = $1.25 per pound.

Front

What is the unit rate for John who drives 54 miles in 9 days?

Back

To find the unit rate, divide the total miles by the number of days: 54 miles ÷ 9 days = 6 miles per day.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity ÷ Number of Units.

Front

If a car travels 120 miles in 2 hours, what is the unit rate in miles per hour?

Back

120 miles ÷ 2 hours = 60 miles per hour.

Front

How do you express a unit rate in a word problem?

Back

Identify the total quantity and the unit, then divide to find the rate per one unit, expressing it clearly as 'X per unit'.

Front

What is the unit rate if a person earns $300 for 15 hours of work?

Back

$300 ÷ 15 hours = $20 per hour.

Front

If a recipe calls for 4 cups of flour for 2 loaves of bread, what is the unit rate of flour per loaf?

Back

4 cups ÷ 2 loaves = 2 cups of flour per loaf.