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 can buy 3 apples for $1.50, the unit rate is $0.50 per apple.

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 spent $15 for 6 gallons of gasoline, the unit rate is $15 ÷ 6 = $2.50 per gallon.

Front

What is the unit rate of $3.75 for 3 pounds of granola?

Back

$1.25 per pound.

Front

What mathematical operation do ratios involve?

Back

Division.

Front

If Maria can run 1 1/2 miles in 15 minutes, what is her speed in miles per hour?

Back

6 miles per hour.

Front

Which is the better buy: a 12 pack of Coke for $3.50 or a six pack for $1.80?

Back

The 12 pack of Coke.

Front

What is the price per gallon if I paid $15.00 for 6 gallons of gasoline?

Back

$2.50.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How can you express a unit rate as a fraction?

Back

A unit rate can be expressed as a fraction where the numerator is the total amount and the denominator is the number of units. For example, 3 apples for $1.50 can be expressed as 1.50/3.

Front

What is the unit rate of 60 miles in 2 hours?

Back

30 miles per hour.