12/2/2024 Unit Rates Practice

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 can buy 5 apples for $10, the unit rate is $2 per apple.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 35 diapers cost $6.99, the unit rate is $6.99 ÷ 35 = $0.20 per diaper.

Front

If a box of 35 diapers costs $6.99, what is the unit rate?

Back

$0.20 per diaper.

Front

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

Back

102 words per minute.

Front

How do you find the number of items per day from a total?

Back

Divide the total number of items by the number of days. For example, if Lynnette washes 95 cars in 5 days, she washes 95 ÷ 5 = 19 cars per day.

Front

If Lynnette can wash 95 cars in 5 days, how many cars does she wash each day?

Back

19 cars per day.

Front

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

Back

The 12 pack of Coke is the better buy.

Front

How do you compare prices to find the better buy?

Back

Calculate the unit price for each option. For example, for the 12 pack, $3.50 ÷ 12 = $0.29 per can; for the 6 pack, $1.80 ÷ 6 = $0.30 per can.

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound.

Front

How do you calculate the unit price for a bulk purchase?

Back

Divide the total cost by the total weight or quantity. For example, $40 ÷ 5 pounds = $8 per pound.