Answer
$11.55,9.9,8.67$ years
Work Step by Step
Plugging in $r=0.06,0.07,0.08$ into the formula, we get (respectively):
$t=\frac{\ln(2)}{0.06}\approx11.55$,
$t=\frac{\ln(2)}{0.07}\approx9.9$,
$t=\frac{\ln(2)}{0.08}\approx8.67$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 4, Exponential and Logarithmic Functions - Section 4.3 - Logarithmic Functions - 4.3 Exercises - Page 389: 99
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
