Calculating 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 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 quantity of one item by the quantity of another item. For example, if you have 10 apples for $5, the unit rate is $5/10 apples = $0.50 per apple.

Front

What is the unit rate of 231 miles with 7 gallons of gas?

Back

33 miles per gallon.

Front

If a pump moves 42 gallons in 7 minutes, what is the unit rate?

Back

6 gallons per minute.

Front

How do you find the slowest reading rate from a set of options?

Back

Calculate the rate for each option by dividing the number of pages by the time taken, then compare the results.

Front

What is the reading rate for 3 pages in 9 minutes?

Back

The reading rate is 1/3 pages per minute or approximately 0.33 pages per minute.

Front

If Jack jumps 40 times in 4 minutes, how many times does he jump in 1 minute?

Back

10 times per minute.

Front

What is the unit rate for Jonah who skated for $45.50?

Back

7 hours.

Front

How do you convert a rate to a unit rate?

Back

Divide the total amount by the number of units to find the amount per one unit.

Front

What is the formula for calculating miles per gallon (mpg)?

Back

Miles per gallon (mpg) = Total miles driven / Total gallons of gas used.