Rates and Unit Rates

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, often with different units, such as speed (miles per hour) or cost (dollars per item).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you calculate the unit rate from a total quantity?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if 120 customers visit a store in 6 hours, the unit rate is 120 ÷ 6 = 20 customers per hour.

Front

If Sam buys 5 pounds of meat for $5.50, how much does he pay per pound?

Back

$1.10 per pound.

Front

Lynnette can wash 95 cars in 5 days. How many cars does she wash each day?

Back

19 cars per day.

Front

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

Back

20 customers per hour.

Front

Which of the following is a UNIT RATE? 10 miles / 2 hours, $6 for each hour, 1 box / $3, 15 pounds every 5 servings

Back

$6 for each hour.

Front

At the market, 7 apples cost $4.55. What is the cost per apple?

Back

$0.65 per apple.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a car travels 150 miles in 3 hours, what is the speed in miles per hour?

Back

50 miles per hour.