Review Day - Ratios and Rates

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What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another.

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What is a rate?

Back

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

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What is a unit rate?

Back

A unit rate is a rate in which the second quantity is 1, showing how much of one item corresponds to one unit of another.

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What does 'equivalent ratios' mean?

Back

Equivalent ratios are ratios that express the same relationship between numbers, even if the numbers themselves are different.

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How do you find a unit rate from a total?

Back

To find a unit rate, divide the total quantity by the number of units. For example, if there are 60 miles in 3 hours, the unit rate is 60 ÷ 3 = 20 miles per hour.

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What is a constant rate?

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A constant rate is a rate that does not change over time, remaining the same regardless of the situation.

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If there are 207 students in 9 classes, how many students are in 1 class?

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To find the number of students in 1 class, divide 207 by 9. 207 ÷ 9 = 23 students.

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If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

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The ratio of flour to sugar is 2:3.

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What is the formula to calculate a ratio?

Back

The formula to calculate a ratio is: Ratio = Quantity A : Quantity B.

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What is the difference between a ratio and a rate?

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A ratio compares two quantities of the same kind, while a rate compares two quantities of different kinds.