Rates and Unit Rate

Front

What is a rate?

Back

A rate is a ratio that compares quantities with different units.

Front

How do you calculate the unit rate?

Back

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

Front

If it costs $46.80 to fill a 13-gallon gas tank, what is the price per gallon?

Back

$3.60 per gallon.

Front

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

Back

$8 per pound.

Front

What is the unit rate of 20-lb bag of dog food costing $23.44?

Back

$1.17 per pound.

Front

What is the unit rate of an 8-lb bag of dog food costing $9.88?

Back

$1.24 per pound.

Front

What is the unit rate of a 40-lb bag of dog food costing $49.00?

Back

$1.23 per pound.

Front

Which bag of dog food has the lowest cost per pound?

Back

The 20-lb bag.

Front

If Ernie is traveling at 65 miles per hour, how far will he travel in 2 hours?

Back

130 miles.

Front

What is the formula for calculating unit rate?

Back

Unit Rate = Total Amount / Number of Units.