IXL | Convert customary and metric units using proportions

Which proportion could you use to convert 6 cups to pints?

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pint

cups

pints

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pint

pints

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Convert.

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pints

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question

Which proportion could you use to convert 28 cups to quarts?

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quart

quarts

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quart

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quarts

Convert.

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quarts

solution

Write a proportion to convert 28 cups to quarts. First, write a unit rate that relates cups and quarts. Remember that there are 4 cups in 1 quart.

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quart

Now, write another rate with the numbers from the problem. Put cups in the numerator and quarts in the denominator to match the unit rate.

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quart

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Use this proportion to convert 28 cups to quarts. Compare the numerators.

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quarts

To get from 4 to 28, multiply by 7. Multiply the numerator and denominator by 7 to convert.

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So, 28 cups = 7 quarts.

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