Unit Rates and Proportional Relationships

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 4 bananas cost $2, the unit rate is $0.50 per banana.

Front

How do you find the unit rate from a ratio?

Back

To find the unit rate from a ratio, divide the first quantity by the second quantity. For example, if you have 72 ounces for 12 servings, divide 72 by 12 to get 6 ounces per serving.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where their ratio is constant. This means that if one quantity increases, the other quantity increases at the same rate.

Front

If 4 large pizza pockets require 14 cups of broccoli, how much broccoli is needed for 1 pizza pocket?

Back

3.5 cups of broccoli.

Front

What is the cost per pound if 4 pounds of bananas cost $6?

Back

$1.50 per pound.

Front

True or False: In a proportional relationship, only one of the ratios should be equivalent.

Back

False. All ratios in a proportional relationship should be equivalent.

Front

How do you calculate the total earnings for a given number of hours worked?

Back

Multiply the hourly wage by the number of hours worked. For example, if you earn $9 per hour and work 6 hours, you would earn $54.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a recipe requires 72 ounces for 12 servings, how many ounces are needed for 1 serving?

Back

6 ounces per serving.

Front

What does it mean if two quantities are in a proportional relationship?

Back

It means that as one quantity changes, the other quantity changes in a consistent way, maintaining the same ratio.