Unit 2 Proportional Relationships Review

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if you have 72 ounces for 12 servings, the unit rate is 72 ÷ 12 = 6 ounces per serving.

Front

What is the unit rate of 150 miles on 5 gallons?

Back

30 miles per gallon.

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

How can you express the ratio of 3 cars to 12 trucks?

Back

The ratio can be expressed as 3:12 or simplified to 1:4.

Front

What is the formula for finding a ratio?

Back

The formula for finding a ratio is: Ratio = Quantity A : Quantity B.

Front

If Miguel saves 15 dollars per month, how much will he save in 6 months?

Back

He will save 90 dollars in 6 months (15 dollars x 6 months).

Front

What is a rate?

Back

A rate is a ratio that compares two different kinds of quantities, such as miles per hour or dollars per item.

Front

How do you determine if a table shows a proportional relationship?

Back

A table shows a proportional relationship if the ratios of the corresponding values are equivalent.

Front

What is the relationship between unit rates and proportional relationships?

Back

Unit rates are used to determine proportional relationships by comparing quantities on a per unit basis.