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Prealgebra

Ratio and Proportion

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Ratios

A solution of alcohol and water contains \(15\) milliliters of water and \(5\) milliliters of alcohol. Find the ratio of alcohol to water, water to alcohol, water to total solution, and alcohol to total solution. Write each ratio as a fraction and reduce to lowest terms.

Suppose a pizza restaurant advertised the prices shown in the book for their deep dish pizza. Use the information to find the ratio of the cost of the large cheese pizza to the medium cheese pizza.Then change the ratio to a decimal rounded to the nearest tenth.

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Rates and Unit Pricing

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Proportions

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Applications of Proportions

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Similar Figures

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Mean, Median, and Mode

A math class with \(18\) students had the grades shown below on their first test. Find the mean, the median, and the mode.

\(77 \quad 87 \quad 100 \quad 65 \quad 79 \quad 87 \quad 79 \quad 85 \quad 87\\
95 \quad 56 \quad 87 \quad 56 \quad 75 \quad 79 \quad 93 \quad 97 \quad 92\)