Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 3 - 3.5 - Mathematical Modeling and Variation - 3.5 Exercises - Page 296: 59



Work Step by Step

$P=k\frac{x}{y^2}$ $P=\frac{28}{3}$ when $x=42$ and $y=9$: $\frac{28}{3}=k\frac{42}{9^2}=k\frac{42}{81}$ $k=\frac{\frac{28}{3}}{\frac{42}{81}}=\frac{28}{3}\frac{81}{42}=\frac{2268}{126}=18$ Then: $P=18\frac{x}{y^2}$
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