Ratios, Rates, and Unit 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, often expressed in the form 'a:b'.

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How do you calculate a unit rate?

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A unit rate is calculated by dividing the quantity of one item by the quantity of another item, resulting in a rate per one unit of the second item.

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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, often involving time or distance.

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How do you determine which option has a better unit rate?

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To determine which option has a better unit rate, calculate the unit rate for each option and compare the results; the lower the unit rate, the better the value.

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What is a unit rate example in everyday life?

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An example of a unit rate is the price of a product per item, such as $2 per apple.

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How do you express a ratio in simplest form?

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To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor.

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What is the formula to find the number of adults needed for a group of students?

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The formula is: Number of adults = Total number of students / Number of students per adult.

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How do you convert a ratio to a fraction?

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To convert a ratio to a fraction, write the first quantity as the numerator and the second quantity as the denominator.

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What is gas mileage and how is it calculated?

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Gas mileage is the distance a vehicle can travel per unit of fuel, calculated by dividing the number of miles driven by the number of gallons of gas used.

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What does it mean for a car to have better gas mileage?

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A car has better gas mileage if it can travel more miles per gallon of gas compared to another car.