Proportions and Unit Rate

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, you can cross-multiply and then divide to find the unknown value.

Tags

CCSS.7.RP.A.2A

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Back

50 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate from a ratio?

Back

Divide the first quantity by the second quantity to find the unit rate.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a recipe requires 4 cups of flour for 2 loaves of bread, what is the unit rate of flour per loaf?

Back

2 cups of flour per loaf.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between proportions and equivalent fractions?

Back

Proportions are equivalent fractions that show two ratios are equal.

Tags

CCSS.7.RP.A.2B

Front

If 5 apples cost $2, what is the cost of 1 apple?

Back

$0.40 per apple.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How can you use proportions to solve real-world problems?

Back

You can set up a proportion based on the relationship between quantities and solve for the unknown.

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CCSS.7.RP.A.3

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2