Unit Rates and Ratio Tables

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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 as a fraction or with a colon.

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What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something (e.g., miles per hour, dollars per item).

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How do you calculate a unit rate from a ratio?

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To calculate a unit rate from a ratio, divide the first quantity by the second quantity to find the amount per one unit of the second quantity.

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What is the formula for finding the cost per item?

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The cost per item can be found by dividing the total cost by the number of items: Cost per item = Total cost / Number of items.

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How do you find a missing value in a ratio table?

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To find a missing value in a ratio table, use the known ratios to set up a proportion and solve for the unknown value.

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What is the relationship between ratios and proportions?

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Ratios compare two quantities, while proportions state that two ratios are equal to each other.

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How can you express a ratio in different forms?

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A ratio can be expressed as a fraction, with a colon (e.g., 3:4), or in words (e.g., '3 to 4').

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What is the significance of unit rates in real-life applications?

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Unit rates help in making comparisons and informed decisions in real-life situations, such as shopping, travel, and budgeting.

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How do you convert a ratio to a percentage?

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To convert a ratio to a percentage, divide the first quantity by the total of both quantities and multiply by 100.

Front

What is the unit rate of 120 customers in 8 hours?

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The unit rate is 15 customers per hour, calculated by dividing 120 by 8.