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 to solve a word problem?

Back

Identify the two quantities that are being compared, set them as a ratio, and then create an equation to solve for the unknown.

Tags

CCSS.7.RP.A.3

Front

If 3 pounds of apples cost $0.90, what is the cost per pound?

Back

$0.30 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the total cost for a different quantity using proportions?

Back

Use the unit rate (cost per pound) and multiply it by the new quantity.

Tags

CCSS.7.RP.A.3

Front

What is the formula for finding the time taken if distance and speed are known?

Back

Time = Distance / Speed.

Tags

CCSS.6.RP.A.3B

Front

If a bird flies 35 meters in 10 seconds, what is its speed in meters per second?

Back

3.5 meters per second.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine the number of weeks needed to reach a certain number of quizzes?

Back

Set up a proportion based on the number of quizzes taken per week.

Tags

CCSS.7.RP.A.2C

Front

If Harold took 8 quizzes in 2 weeks, how many quizzes does he take per week?

Back

4 quizzes per week.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between hours practiced and weeks in the culinary example?

Back

The number of hours practiced is directly proportional to the number of weeks.

Tags

CCSS.7.RP.A.2D

Front

If Farah learned 15 recipes in 3 weeks, how many recipes does she learn per week?

Back

5 recipes per week.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2