Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Section 6.6 - Rational Equations and Problem Solving - Exercise Set - Page 389: 65

Answer

$164 \text{ pounds}$

Work Step by Step

Since $1$ $ft$ is equal to $12$ $in.$, then the given height, $5$ $ft$ $8$ $in.$, is equivalent to \begin{align*} 5(12)+8 \\\\= 60+8 \\\\= 68 \text{ } in .\end{align*} Using the given formula, $B=\dfrac{705w}{h^2},$ then \begin{align*} 25=\dfrac{705w}{68^2} \\\\ 25=\dfrac{705w}{4624} \\\\ 25(4624)=705w \\\\ \dfrac{25(4624)}{705}=w \\\\ w=163.97163120567375886524822695035 .\end{align*} To the nearest whole pound, the weight is $ 164 \text{ pounds} .$
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