Ratios, Rates, Unit Rates, Proportions Test Review

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 write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or with the word 'to' (e.g., 2 to 3).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate from a total distance and time?

Back

To find the unit rate, divide the total distance by the total time. For example, 440 miles ÷ 8 hours = 55 miles per hour.

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. For example, if 1/2 = 2/4, then these two ratios are in proportion.

Tags

CCSS.7.RP.A.2B

Front

How can you determine if two ratios are equivalent?

Back

Two ratios are equivalent if their cross products are equal. For example, for the ratios a/b and c/d, if a*d = b*c, they are equivalent.

Tags

CCSS.6.RP.A.3A

Front

What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

The ratio of dogs to all pets is 2:11.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Justin ordered 5 ice cream bars for $12.25, how much was each ice cream bar?

Back

Each ice cream bar costs $2.45.

Tags

CCSS.6.NS.B.3

Front

If there are 5 dogs for every 20 cats, what is the simplified ratio of dogs to cats?

Back

The simplified ratio of dogs to cats is 1:4.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the rate if Alicia drove 182.4 miles in 3 hours?

Back

Alicia's rate is 60.8 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2