Introduction to Ratios, Rate and Unit Rate

What is a rate?

• A ratio of two measures having different units.

• Another name for a ratio.

• A comparison between two quantities

• A simplified rate so that it has a denominator of one.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

A _________ is an organized way to show the relationship between two different quantities.

• decimals

• fraction

• ratio table

• percents

A ratio can be written in the three ways shown in the image.

• true

• false

• sometimes

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is a unit rate?

• A simplified rate.

• A simplified ratio.

• A simplified rate so that the denominator is one.

• A simplified rate so that the numerator is one.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A class has 15 boys and 20 girls. What is the boy:girl ratio in simplest form?

• 4 to 5

• 10 to 13

• 3:4

• 3:5

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which ratio is equivalent to the ratio 3 hours : 21 minutes?

• 1:7

• 7:1

• 7:60

• 60:7

Tags

CCSS.6.RP.A.3A

Which ratio is equivalent to the ratio 10 inches : 2 feet.

• 5:1

• 1:5

• 5:12

• 12:5

Tags

CCSS.6.RP.A.3A

Which relationship describes 2:5

• The ratio of desks to chairs if there are 5 chairs and 2 desk

• The ratio of boys to girls if there are 2 girls and 5 boys

• The ratio of girls to boys if ther are 2 girls and 5 boys

• The ratio of chairs to desk if there are 5 chairs and 2 desk

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Lynnette can wash 95 cars in 5 days. How many cars does she wash each day?

• 475 cars per day

• 19 cars per day

• .05 cars per day

• 15 cars per day

Tags

CCSS.7.EE.B.3