Rates and Unit Rates

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What is a rate?

Back

A rate is a ratio that compares two different quantities, typically with different units.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, allowing for easy comparison.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you calculate a unit rate from a given rate?

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To calculate a unit rate, divide the first quantity by the second quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Lynnette can wash 95 cars in 5 days, how do you find the number of cars she washes per day?

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Divide 95 cars by 5 days to find that she washes 19 cars per day.

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CCSS.3.OA.A.3

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What is the unit rate of $30 for 5 hours?

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The unit rate is $6 for each hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How are rates and unit rates similar?

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Both rates and unit rates compare two different quantities of information.

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CCSS.6.RP.A.3A

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What is the formula for solving proportions?

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The formula for solving proportions is a/b = c/d, where a, b, c, and d are quantities.

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CCSS.7.RP.A.2A

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If Luke can paint 91 portraits in 7 weeks, how do you find the number of portraits he paints each week?

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Divide 91 portraits by 7 weeks to find that he paints 13 portraits per week.

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CCSS.3.OA.A.3

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What is the importance of unit rates in real-life applications?

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Unit rates help in making comparisons and informed decisions in various real-life situations, such as shopping or budgeting.

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CCSS.6.RP.A.3B

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How can you convert a rate into a unit rate?

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

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CCSS.6.RP.A.1

CCSS.6.RP.A.2