Rates: 6th Grade

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, often expressed as a quantity per unit of another quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 7 apples cost $4.55, the unit rate is $4.55 ÷ 7.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Luke can paint 91 portraits in 7 weeks, how many portraits does he paint each week?

Back

13 portraits per week.

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CCSS.7.RP.A.2C

Front

What is the cost per apple if 7 apples cost $4.55?

Back

$0.65 per apple.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate in dollars per pound?

Back

Divide the total cost by the total weight. For example, if Will spent $3.75 for 3 pounds of granola, the unit rate is $3.75 ÷ 3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Ken can walk 40 dogs in 8 hours, how many dogs can he walk in one hour?

Back

5 dogs per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate in customers per hour if a store has 120 customers in 6 hours?

Back

20 customers per hour.

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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 1. It shows how much of one quantity corresponds to one unit of another quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you convert a rate to a unit rate?

Back

To convert a rate to a unit rate, divide both quantities by the same number to simplify it to a ratio of 1.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula for calculating rates?

Back

Rate = Quantity 1 / Quantity 2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2