Unit Rate

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 a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the first quantity by the second quantity. For example, if you have 120 customers in 6 hours, the unit rate is 120 ÷ 6 = 20 customers per hour.

Front

If a skydiver falls 144 feet in 3 seconds, how far does the skydiver fall per second?

Back

48 feet per second.

Front

What is the cost per pound of a 20-lb bag of dog food that costs $23.44?

Back

$1.17 per pound.

Front

Which size bag of dog food has the lowest cost per pound: 8-lb for $9.88, 20-lb for $23.44, or 40-lb for $49.00?

Back

The 20-lb bag has the lowest cost per pound.

Front

If a store has 120 customers in 6 hours, what is the unit rate in customers per hour?

Back

20 customers per hour.

Front

How do you find the unit cost of an item?

Back

To find the unit cost, divide the total cost by the number of items. For example, if 15 pizzas cost $97.50, the unit cost is $97.50 ÷ 15 = $6.50 per pizza.

Front

If Maya makes $10 an hour, how many hours will it take her to earn $150?

Back

15 hours.

Front

What is the formula for calculating unit price?

Back

Unit Price = Total Price ÷ Quantity.

Front

If a car travels 240 miles in 4 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.