Answer
t=7,582
Work Step by Step
We consider $y=11,488e^{-.0277t}$.
To solve, we plug in 5 for x:
$y=11,488e^{-.0277*15}$
Plug this into your calculator, being sure to include parentheses around the terms that are in the superscript.
t=7,582
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 9 - Section 9.8 - Exponential and Logarithmic Equations and Problem Solving - Exercise Set - Page 591: 43
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