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 the unit rate?

Back

To calculate the unit rate, divide the quantity by the number of units.

Front

If a store sells 120 items in 6 hours, what is the unit rate in items per hour?

Back

20 items per hour.

Front

Which is the better buy: a 12 ounce can for $1.92 or a 20 ounce can for $3.00?

Back

The 20 ounce can is the better buy.

Front

What is the unit rate of 25 homework assignments graded in 20 minutes?

Back

The unit rate is 1.25 assignments per minute.

Front

If a 20-lb bag of dog food costs $23.44, what is the cost per pound?

Back

The cost per pound is $1.17.

Front

How do you determine which item has the lowest cost per unit?

Back

Calculate the cost per unit for each item and compare the values.

Front

If a teacher grades 36 homework assignments in 30 minutes, is this faster or slower than grading 25 in 20 minutes?

Back

It is a faster rate.

Front

What is the cost per pound of an 8-lb bag of dog food that costs $9.88?

Back

The cost per pound is $1.24.

Front

If a 40-lb bag of dog food costs $49.00, what is the cost per pound?

Back

The cost per pound is $1.23.