Answer
$x = 7$
Work Step by Step
$2500(\frac{1}{5})^{x} = 0.032$
$(\frac{1}{5})^{x} = \frac{0.032}{2500}$
$x = \log_{\frac{1}{5}} (\frac{0.032}{2500})$
by GDC / calculator
$x = 7$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 6 - Logarithmic Functions - 6.5 Solving Exponential Equations - 6.5 Exercises - Page 526: 21
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