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 ratios involved in the problem and set them equal to each other.

Tags

CCSS.7.RP.A.3

Front

If a recipe requires 2 cups of flour for 12 cookies, how many cups are needed for 1 cookie?

Back

0.1667 cups of flour.

Tags

CCSS.6.RP.A.3B

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 4 cups of flour make 36 cookies, how many cookies can be made with 1 cup of flour?

Back

9 cookies.

Tags

CCSS.6.RP.A.3B

Front

How do you find the total amount needed when scaling a recipe?

Back

Multiply the amount of each ingredient by the scaling factor.

Tags

CCSS.7.RP.A.2C

Front

If a train travels 300 miles in 5 hours, what is its speed in miles per hour?

Back

60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the distance traveled if you know the speed and time?

Back

Distance = Speed x Time.

Tags

CCSS.6.RP.A.3B

Front

If a recipe calls for 3 cups of cheese for 6 pizzas, how much cheese is needed for 1 pizza?

Back

0.5 cups of cheese.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between the number of cookies and the amount of flour in a recipe?

Back

It is a direct proportion; as the number of cookies increases, the amount of flour increases.

Tags

CCSS.7.RP.A.2D