4.1 Unit Rates (7th)

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 a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if 4 pounds of bananas cost $6, the unit rate is $6 ÷ 4 = $1.50 per pound.

Front

Find the unit rate of 35 candy bars costing $6.99.

Back

$0.20 per candy bar.

Front

If it snowed 20 inches in 5 hours, what is the unit rate of inches per hour?

Back

4 inches per hour.

Front

What is the cost per pound if 4 pounds of bananas cost $6?

Back

$1.50 per pound.

Front

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

Back

102 words per minute.

Front

Lisa made $300 in 6 hours. What is her unit rate?

Back

$50 per hour.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a car travels 240 miles in 3 hours, what is the unit rate in miles per hour?

Back

80 miles per hour.

Front

How do you express a unit rate as a fraction?

Back

A unit rate can be expressed as a fraction where the numerator is the total quantity and the denominator is the number of units. For example, 300 miles/5 hours = 60 miles/hour.