College Algebra 7th Edition

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

Chapter 1, Equations and Graphs - Section 1.10 - Modeling Variation - 1.10 Exercises - Page 164: 22


$P= \frac{1}{15}T$

Work Step by Step

Since $P$ is directly proportional to $T$, we have: $P=kT$ We are given: $P=20$ and $T=300$, so we have: $20=k*300$ $k=\frac{20}{300}=\frac{1}{15}$ So the equation is: $P= \frac{1}{15}T$
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