Rate and Unit Rate Flashcard

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 a quantity of one. 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 rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if you burn 465 calories in 4 hours, the unit rate is 465 ÷ 4 = 116.25 calories per hour.

Front

What is the better buy: 22 ounces for $2.64 or 40 ounces for $5.60?

Back

The better buy is the 22 ounce bag, which costs $0.12 per ounce compared to $0.14 per ounce for the 40 ounce bag.

Front

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

Back

The cost per can is $3.50 ÷ 12 = $0.29 per can.

Front

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

Back

The cost per can is $1.80 ÷ 6 = $0.30 per can.

Front

How do you determine which item is a better buy?

Back

To determine which item is a better buy, calculate the unit price (cost per unit) for each item and compare them. The item with the lower unit price is the better buy.

Front

What is the unit rate of calories burned if Juliana burns 465 calories in 4 hours?

Back

The unit rate is 116.25 calories per hour.

Front

If Kim travels 450 miles in 6 hours, what is her speed in miles per hour?

Back

Her speed is 75 miles per hour.

Front

How much would 9 pizzas cost if 6 pizzas cost $48?

Back

9 pizzas would cost $72.

Front

What is the formula for finding the unit rate?

Back

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