Proportions Flashcardz

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 for x in a proportion?

Back

To solve for x in a proportion, cross-multiply the terms and then isolate x.

Tags

CCSS.7.RP.A.2C

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio that relates two quantities in a proportional relationship.

Tags

CCSS.7.RP.A.2B

Front

If 2 minutes corresponds to 120 seconds, what is the ratio of 54 seconds to 120 seconds in simplest form?

Back

9:20

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio.

Tags

CCSS.7.RP.A.2A

Front

If Annie makes 18 baskets out of 30 attempts, what is her success rate?

Back

Her success rate is 18/30 or 0.6 (60%).

Front

If Cameron makes half as many baskets as Annie, how many baskets does he make in 30 attempts?

Back

Cameron makes 9 baskets in 30 attempts.

Tags

CCSS.4.OA.A.2

Front

What is the formula to calculate miles per gallon (MPG)?

Back

MPG = Total miles driven / Total gallons of gas used.

Tags

CCSS.6.RP.A.3B

Front

If Grant drove 417 miles on 15 gallons of gas, how many miles per gallon does he get?

Back

Grant's car gets 27.8 miles per gallon.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between minutes and water level in the given data?

Back

The relationship is proportional with a constant rate of 12.

Tags

CCSS.7.RP.A.2D