Unit 3 Review - Rates, Ratios, Percents

Front

What is a unit cost?

Back

A unit cost is the cost incurred to produce, store, or purchase one unit of a product or service.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit cost from total cost and quantity?

Back

Unit cost = Total cost / Quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 12 tickets cost $72, what is the unit cost per ticket?

Back

$6 per ticket.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to calculate hourly wage?

Back

Hourly wage = Total earnings / Total hours worked.

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CCSS.6.RP.A.3B

Front

If Vanessa earned $76 for 8 hours, what is her hourly wage?

Back

$9.50 per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

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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.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is an equivalent ratio?

Back

Equivalent ratios are ratios that express the same relationship between numbers, even if the numbers themselves are different.

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CCSS.6.RP.A.3A

Front

If Kendra uses 63 cups of flour for 21 dozens of muffins, what is the ratio of flour to muffins?

Back

The ratio of flour to muffins is 63:21.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100.