Math 7 Proportions (Flashcard)

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 find a missing value in a ratio table?

Back

To find a missing value in a ratio table, set up a proportion using the known values and solve for the unknown.

Front

If a recipe calls for 2 cups of sugar for every 3 cups of flour, how much sugar is needed for 6 cups of flour?

Back

4 cups of sugar.

Tags

CCSS.6.RP.A.3B

Front

What is the formula to calculate unit price?

Back

Unit Price = Total Price / Quantity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 5 pounds of apples cost $10, what is the cost of 1 pound?

Back

$2 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equivalent.

Tags

CCSS.6.RP.A.3A

Front

How do you solve for x in a proportion?

Back

Cross-multiply the terms and then isolate x.

Tags

CCSS.7.RP.A.2C

Front

What does it mean if two ratios are equivalent?

Back

It means they represent the same relationship between quantities.

Tags

CCSS.6.RP.A.3A

Front

If a car travels 150 miles on 5 gallons of gas, what is the car's miles per gallon?

Back

30 miles per gallon.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, often expressed as a fraction.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2