Proportions

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, cross-multiply the two ratios and set the products equal to each other.

Tags

CCSS.7.RP.A.3

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 7 sandwich rolls cost $1.68, how much will 29 rolls cost?

Back

$7.96

Tags

CCSS.6.NS.B.3

Front

What is the unit rate?

Back

The unit rate is a ratio that compares a quantity to one unit of another quantity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a can of lemonade requires 4 scoops of mix for every 28 cups of water, how much water is needed for 40 scoops?

Back

280 cups of water

Tags

CCSS.6.RP.A.3B

Front

What does it mean if two quantities are in direct proportion?

Back

If two quantities are in direct proportion, as one quantity increases, the other quantity increases at a constant rate.

Tags

CCSS.7.RP.A.2A

Front

The ratio of a quarterback's completed passes to attempted passes is 7 to 8. If he attempted 24 passes, how many did he complete?

Back

21 passes

Tags

CCSS.7.RP.A.3

Front

What is the formula for finding a missing value in a proportion?

Back

If a/b = c/d, then ad = bc.

Tags

CCSS.7.G.A.1

Front

If a dishwasher uses 32 gallons of water for 4 loads, how much will it use for 10 loads?

Back

80 gallons

Tags

CCSS.6.RP.A.3B