Study Guide: Unit rate and better buys

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 travel 60 miles in 2 hours, the unit rate is 30 miles per hour.

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 juice boxes costs $6.00, the unit price is $6.00 ÷ 12 = $0.50 per juice box.

Front

What is the better buy?

Back

The better buy is the option that has the lower unit price or better unit rate. It allows you to get more value for your money.

Front

How do you compare two unit rates?

Back

To compare two unit rates, calculate the unit rate for each option and then compare the values. The lower unit rate represents a better deal.

Front

If a 12-pack of soda costs $9.00, what is the unit price?

Back

The unit price is $9.00 ÷ 12 = $0.75 per can.

Front

What is the formula for finding the unit rate?

Back

The formula for finding the unit rate is: Unit Rate = Total Quantity ÷ Total Cost.

Front

If you travel 240 miles in 4 hours, what is your speed in miles per hour?

Back

Your speed is 240 miles ÷ 4 hours = 60 miles per hour.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value, making it simpler but still close to the original value.

Front

How do you find the best deal when comparing prices?

Back

To find the best deal, calculate the unit price for each option and choose the one with the lowest unit price.

Front

If a 10-pound bag of rice costs $15, what is the cost per pound?

Back

The cost per pound is $15 ÷ 10 pounds = $1.50 per pound.