Unit Rates

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. It is often used to determine the cost per item, speed, or efficiency.

Front

How do you calculate the unit price of an item?

Back

To calculate the unit price, divide the total price of the item by the number of units. For example, if a box of 10 items costs $5, the unit price is $5 ÷ 10 = $0.50 per item.

Front

What is the unit rate of a product if it costs $12 for 4 items?

Back

The unit rate is $12 ÷ 4 = $3 per item.

Front

If a person earns $300 for 10 hours of work, what is their hourly wage?

Back

The hourly wage is $300 ÷ 10 = $30 per hour.

Front

How do you compare unit rates to find the better deal?

Back

To compare unit rates, calculate the unit price for each option and then compare these values. The option with the lower unit price is the better deal.

Front

What is the unit rate of speed if a car travels 150 miles in 3 hours?

Back

The unit rate of speed is 150 miles ÷ 3 hours = 50 miles per hour.

Front

If a box of 24 diapers costs $8.40, what is the cost per diaper?

Back

The cost per diaper is $8.40 ÷ 24 = $0.35 per diaper.

Front

How do you determine if a rate is faster or slower?

Back

To determine if a rate is faster or slower, compare the unit rates. The higher the unit rate, the faster the rate.

Front

What is the unit rate of a recipe that requires 4 cups of flour for 8 servings?

Back

The unit rate is 4 cups ÷ 8 servings = 0.5 cups of flour per serving.

Front

If a student can read 120 pages in 2 hours, what is their reading rate in pages per hour?

Back

The reading rate is 120 pages ÷ 2 hours = 60 pages per hour.