College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Chapter 1 Review - Exercises - Page 171: 112


$z=\displaystyle \frac{192}{y}$

Work Step by Step

Since we are told that $z$ is inversely proportional to $y$, we have: $z=\frac{k}{y}$ We are given: $z=12$ and $y=16$, so we have: $12=\displaystyle \frac{k}{16}$ $k=12*16=192$ Thus the equation is: $z=\displaystyle \frac{192}{y}$
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