Unit Rates

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What is a unit rate?

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A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you drive 300 miles on 10 gallons of gas, the unit rate is 30 miles per gallon.

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How do you calculate a unit rate?

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To calculate a unit rate, divide the first quantity by the second quantity. For example, if you have 240 miles driven on 8 gallons of gas, the unit rate is 240 ÷ 8 = 30 miles per gallon.

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If Sam drove 220 miles on 8 gallons of gas, what is the unit rate?

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2.75 mpg

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A computer downloads 1,680 kilobytes in 4 minutes. What is the unit rate?

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420 kb per minute

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If it costs $3 for eight cans of soda, what is the unit price?

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$0.38

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Ricky made $600 in two weeks. What is the unit rate?

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$300 per week

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Larry can type 225 words in 3 minutes. How many words can he type in 10 minutes?

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750 words

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What is the formula for finding the unit price?

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Unit Price = Total Price ÷ Number of Items. For example, if a pack of 12 eggs costs $3, the unit price is $3 ÷ 12 = $0.25 per egg.

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What is the significance of unit rates in real life?

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Unit rates help compare prices, speeds, and efficiencies, making it easier to make informed decisions, such as finding the best deal or understanding performance.

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How can unit rates be used in shopping?

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Unit rates allow consumers to compare prices of different sizes or brands to determine which offers the best value. For example, comparing the price per ounce of two different brands of cereal.