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: 57



Work Step by Step

$z=kxy$ $z=64$ when $x=4$ and $y=8$: $64=k(4)(8)=32k$ $k=\frac{64}{32}=2$ Then: $z=2xy$
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