5.3 Warm Up

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find equivalent ratios?

Back

To find equivalent ratios, you can multiply or divide both terms of the ratio by the same non-zero number.

Tags

CCSS.6.RP.A.3A

Front

What are two equivalent ratios for 11/20?

Back

22/40 and 33/60 are equivalent ratios for 11/20.

Tags

CCSS.6.RP.A.3A

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they express the same relationship between quantities, meaning they simplify to the same value.

Tags

CCSS.7.RP.A.2A

Front

How can you determine if two quantities have a proportional relationship using a graph?

Back

If the graph of the two quantities forms a straight line that passes through the origin, they have a proportional relationship.

Tags

CCSS.7.RP.A.2D

Front

What is the significance of the origin in a proportional relationship graph?

Back

The origin (0,0) indicates that when one quantity is zero, the other quantity is also zero, which is a characteristic of proportional relationships.

Tags

CCSS.7.RP.A.2D

Front

What is the formula for finding the unit rate from a ratio?

Back

The unit rate is found by dividing the first quantity by the second quantity in the ratio.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a ratio is 3:4, what is the unit rate?

Back

The unit rate is 3/4 or 0.75.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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 can you solve a proportion?

Back

You can solve a proportion by cross-multiplying the terms and then solving for the unknown variable.

Tags

CCSS.7.RP.A.2B