Proportions 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 convert grams to ounces?

Back

To convert grams to ounces, divide the number of grams by 28.35.

Tags

CCSS.4.MD.A.1

Front

If the ratio of green to yellow candies is 2:5, how do you find the total number of candies?

Back

Add the parts of the ratio (2 + 5 = 7) and use the number of green candies to find the total: (32 green candies / 2 parts) * 7 parts = 112 total candies.

Front

What is the formula to find the total gallons of water pumped over time?

Back

Total gallons = (gallons per hour) * (number of hours).

Front

How many eggs are needed for a different number of brownies if the original recipe calls for 3 eggs for 18 brownies?

Back

Use the ratio: (3 eggs / 18 brownies) = (x eggs / 48 brownies). Solve for x to find x = 8 eggs.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the time taken to walk a certain distance at a constant pace?

Back

Use the formula: Time = Distance / Speed.

Tags

CCSS.6.RP.A.3B

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equal.

Tags

CCSS.6.RP.A.3A

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

What is the first step in solving a word problem involving proportions?

Back

Read the problem carefully and identify the quantities involved.

Tags

CCSS.7.RP.A.3