Answer
3 hours 45 minutes.
Work Step by Step
Let $x$ be the time required to empty the pool, then our equation is:
$\frac{x}{5}+2\cdot\frac{1}{8}=1\\\frac{x}{5}=\frac{3}{4}\\x=\frac{15}{4}=3.75
$
3 hours 45 minutes.
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.7 - Problem Solving: Interest, Mixture, Uniform Motion, Constant Rate Job Applications - 1.7 Asses Your Understanding - Page 143: 52
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