Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 12 - Review - Page 908: 93

Answer

11.7%

Work Step by Step

rate of growth wanted 1987 had 27 birds 2010 had 347 birds $y=27*(1+x)^0$ $27=27*1$ $2010-1987=23$ $347=27*(1+x)^{23}$ $347/27=27*(1+x)^{23}/27$ $347/27=(1+x)^{23}$ $12.85185=(1+x)^{23}$ $12.85185^{1/23}=((1+x)^{23})^{1/23}$ $12.85185^{1/23}=(1+x)$ $1.1174186=1+x$ $1.1174186-1=1+x-1$ $.1174186=x$
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