Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Review - Page 597: 67

Answer

$log_{7}\frac{3}{4}$

Work Step by Step

The quotient property of logarithms tells us that $log_{b}\frac{x}{y}=log_{b}x-log_{b}y$ (where x, y, and, b are positive real numbers and $b\ne1$). $log_{7}15-log_{7}20=log_{7}\frac{15}{20}=log_{7}\frac{3}{4}$
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