Rates and Unit Rates as Comparisons- M

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, often expressed as a fraction. For example, speed is a rate that compares distance to time.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one. It tells you how much of one quantity corresponds to one unit of another quantity.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if a car travels 300 miles in 5 hours, the unit rate is 300 miles ÷ 5 hours = 60 miles per hour.

Front

If a car travels 160 miles in 4 hours, how far will it travel in 7 hours?

Back

280 miles.

Front

If 2 drops of red are mixed with 3 drops of yellow, how many drops of red are needed for 36 drops of yellow?

Back

24 drops.

Front

Ken can walk 40 dogs in 8 hours. How many dogs can he walk in one hour?

Back

5 dogs per hour.

Front

Harry mowed eight lawns and earned $96. How much did he earn for each lawn?

Back

$12.

Front

At the market, if 7 apples cost $4.55, what is the cost per apple?

Back

$0.65 per apple.

Front

What is the formula for finding the cost per item?

Back

Cost per item = Total cost ÷ Number of items.

Front

If a recipe requires 3 cups of flour for 4 servings, how much flour is needed for 1 serving?

Back

0.75 cups of flour.