Review Of Ratios, Rates and Percents

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What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

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How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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What is the ratio of 35 to 14 simplified?

Back

5 : 2

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What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

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What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part per hundred.

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How do you convert a fraction to a percent?

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To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

Convert 4/5 to a percent.

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80%.

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What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

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2 : 5

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If Lynnette washes 85 cars in 5 days, how many cars does she wash per day?

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17 cars per day.

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What is the formula to find a unit rate?

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To find a unit rate, divide the quantity by the number of units.

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