Comparing Unit Rate/Price

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 10 apples for $5, the unit rate is $0.50 per apple.

Front

How do you calculate the unit price?

Back

To calculate the unit price, divide the total price by the number of units. For example, if a pack of 12 cookies costs $3.00, the unit price is $3.00 ÷ 12 = $0.25 per cookie.

Front

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

Back

The formula for miles per gallon (mpg) is: mpg = miles driven ÷ gallons of gas used.

Front

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

Back

The unit price per can is $3.50 ÷ 12 = $0.29 per can.

Front

What does it mean if one item has a lower unit price than another?

Back

It means that the item with the lower unit price is a better deal, as you pay less for each unit of that item.

Front

How do you compare unit prices?

Back

To compare unit prices, calculate the unit price for each item and then compare those values. The item with the lower unit price is the better buy.

Front

What is the unit price of 5 books for $27.25?

Back

The unit price is $27.25 ÷ 5 = $5.45 per book.

Front

What is the unit price of 6 books for $32.16?

Back

The unit price is $32.16 ÷ 6 = $5.36 per book.

Front

Which is a better deal: 10 slices of cheese for $2.48 or 12 slices for $3.18?

Back

Calculate the unit prices: $2.48 ÷ 10 = $0.248 per slice for Sargento, and $3.18 ÷ 12 = $0.265 per slice for Velveeta. Sargento is the better deal.

Front

If AT&T charges $76.00 for 500 minutes, what is the cost per minute?

Back

The cost per minute is $76.00 ÷ 500 = $0.152 per minute.