Unit Rates Plus

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 one unit. For example, if you buy 5 pounds of concrete for $40, the unit rate is $8 per pound.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total amount of one quantity by the total amount of the other quantity. For example, if you have 120 customers in 6 hours, divide 120 by 6 to find the unit rate of 20 customers per hour.

Front

What is the unit rate of 120 customers in 6 hours?

Back

20 customers per hour.

Front

If a 12-pack of soda costs $3.50, what is the unit price per can?

Back

$0.29 per can (3.50 divided by 12).

Front

If a 6-pack of soda costs $1.80, what is the unit price per can?

Back

$0.30 per can (1.80 divided by 6).

Front

Which is the better buy: a 12-pack for $3.50 or a 6-pack for $1.80?

Back

The 12-pack is the better buy.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

4 red apples to 3 green apples.

Front

How do you determine the better buy between two products?

Back

Calculate the unit price for each product and compare them. The product with the lower unit price is the better buy.

Front

What is the unit rate of 8 juice boxes that cost $4.79?

Back

$0.60 per juice box (4.79 divided by 8).

Front

What is the unit rate of 12 juice boxes that cost $6.59?

Back

$0.55 per juice box (6.59 divided by 12).