Proportion Word Problems

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 set up a proportion for a word problem?

Back

Identify the two quantities being compared, write them as a fraction, and set them equal to each other.

Tags

CCSS.7.RP.A.2C

Front

What is the formula for finding the value of x in a proportion?

Back

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

Tags

CCSS.7.RP.A.3

Front

How do you convert currency using a proportion?

Back

Use the exchange rate as a ratio to set up a proportion to find the equivalent amount in another currency.

Tags

CCSS.7.RP.A.3

Front

If 8 cm of tape wraps 4 presents, how much tape is needed for 1 present?

Back

2 cm of tape is needed for 1 present.

Tags

CCSS.6.RP.A.3B

Front

If a car travels 20 miles in 20 minutes, what is its speed in miles per hour?

Back

The speed is 60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate from a word problem?

Back

Divide the total amount by the number of units to find the rate per unit.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between distance, rate, and time?

Back

Distance = Rate × Time.

Tags

CCSS.8.EE.C.7B

Front

How do you calculate the cost per item in a word problem?

Back

Divide the total cost by the number of items.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 1 bag of carrots costs $3, how much do 6 bags cost?

Back

$18.

Tags

CCSS.3.OA.A.3