Rates/Unit Rates/Better Buy

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 one unit. For example, if a car travels 150 miles in 3 hours, the unit rate is 50 miles per hour.

Front

How do you find the unit rate from a total distance and time?

Back

To find the unit rate, divide the total distance by the total time. For example, if a train travels 1,230 miles in 5 hours, the unit rate is 1,230 miles ÷ 5 hours = 246 miles per hour.

Front

Back

p = 54

Front

What is the unit rate of 50 miles per hour an example of?

Back

It is an example of a unit rate.

Front

How do you calculate the rate per hour if you know the total cost and total hours?

Back

Divide the total cost by the total hours. For example, if renting a bike costs $79.80 for 6 hours, the rate per hour is $79.80 ÷ 6 = $13.30.

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Back

m = 9

Front

What is the formula to find a better buy when comparing prices?

Back

To find a better buy, calculate the unit price for each option and compare them. The option with the lower unit price is the better buy.

Front

If a car travels 300 miles in 5 hours, what is the unit rate?

Back

The unit rate is 300 miles ÷ 5 hours = 60 miles per hour.

Front

What does it mean if two ratios are equivalent?

Back

Front

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

Back

To find the amount of flour per serving, divide 3 cups by 4 servings: 3 cups ÷ 4 = 0.75 cups per serving.