Book edition Common Core Edition

Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages 183 pages

ISBN 9780547587776

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Short Answer

Use a proportion to answer the question. What percent of 90 is 40?

The number 40 is $44 \frac{4}{9} %$ of 90.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1. Given Information.

The number is 90.

Step 2. Calculation.

Let $x$ be the percentage.

Write percentage as a fraction.

Therefore,

$\frac{40}{90} = \frac{x}{100}$

Multiply both sides of the equation with 100 to isolate the variable on one side of the equation.

$\begin{matrix} \frac{40}{90} \times 100 = \frac{x}{100} \times 100 \\ x = \frac{400}{9} \\ = 44 \frac{4}{9} \end{matrix}$

Step 3. Conclusion.

The number 40 is $44 \frac{4}{9} %$ of 90.

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Pre-algebra

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Short Answer

Use a proportion to answer the question. What percent of 90 is 40?

Step by Step Solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

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Use a proportion to answer the question. What percent of 90 is 40?

Step by Step Solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

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