3.3 Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you create a ratio table?

Back

A ratio table is created by listing pairs of equivalent ratios in a table format, allowing for easy comparison and calculation.

Front

If 22 bottles of water cost $4, what is the cost of 1 bottle?

Back

The cost of 1 bottle is $4 ÷ 22 = $0.18.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Using a ratio table, how do you find the cost of 33 bottles if 22 bottles cost $4?

Back

Set up a ratio: 22 bottles / $4 = 33 bottles / x. Cross-multiply to find x = $6.

Front

What is the purpose of using a ratio table in problem-solving?

Back

A ratio table helps visualize relationships between quantities, making it easier to solve proportion problems.

Front

If 3 tennis balls are in 1 tube, how many tennis balls are in 32 tubes?

Back

32 tubes × 3 tennis balls/tube = 96 tennis balls.

Tags

CCSS.3.OA.A.3

Front

How do you determine the number of people seated at each table if 90 people are seated at 15 tables?

Back

Divide the total number of people by the number of tables: 90 ÷ 15 = 6 people per table.

Tags

CCSS.3.OA.A.3

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

If 5 tea bags are used for 1 gallon of water, how many tea bags are needed for 4 gallons?

Back

4 gallons × 5 tea bags/gallon = 20 tea bags.

Tags

CCSS.6.RP.A.3B

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2