Unit Rates

Front

What is a unit rate?

Back

A unit rate is a rate in which the unit in the denominator is 1.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity in the numerator by the quantity in the denominator, ensuring the denominator equals 1.

Front

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

Back

65 miles per hour (195 miles ÷ 3 hours).

Front

How far will Ernie travel in 5 hours at the same speed?

Back

325 miles (65 miles per hour × 5 hours).

Front

What is the ratio of dimes to nickels if there are 10 dimes and 5 nickels?

Back

The ratio is 2 to 1.

Front

If a teacher grades 25 homework assignments in 20 minutes, what is the rate per assignment?

Back

1 assignment every 0.8 minutes.

Front

How many assignments can the teacher grade in 30 minutes at the same rate?

Back

37.5 assignments.

Front

What is the unit rate of snowfall if it snowed 14 inches in 5 hours?

Back

2.8 inches per hour (14 inches ÷ 5 hours).

Front

If a car travels 150 miles in 2 hours, what is the unit rate in miles per hour?

Back

75 miles per hour (150 miles ÷ 2 hours).

Front

What is the unit rate of 36 homework assignments graded in 30 minutes?

Back

1.2 assignments per minute (36 assignments ÷ 30 minutes).