Ratios, Rates and Percents Review

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:b'.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100, denoted by the symbol '%'. For example, 25% means 25 out of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What is the ratio of pink hats to orange hats if Julie has 3 pink hats and 2 orange hats?

Back

3:2

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a recipe calls for 9 cups of flour for every 5 cups of milk, how many cups of flour are needed for 1 cup of milk?

Back

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CCSS.6.RP.A.3B

Front

What is the original ratio of lions to monkeys if there are 4 lions and 24 monkeys?

Back

4:24

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Tara earns $132 for 6 hours of work, what is her hourly rate?

Back

$22 per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Tara earns $4 more per hour at job B and makes $182, how many hours does she work at job B?

Back

7 hours.

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CCSS.7.EE.B.3