Answer
$y=8-\frac{t}{4}, 28 hours$
Work Step by Step
$y=8-\frac{t}{4}$ (The water level initially at 8 feet decreases at a rate of 3 inches per hour (convert inches to feet).
Set y = 1
4(1) = 4(8) - t
t = 28 (hours)
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.2 - Linear Equations in One Variable - 1.2 Exercises - Page 89: 72
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