Answer
$r=3$
Work Step by Step
The common ratio $r$ can be found by dividing a term by the previous term.
Thus, the common ratio of the given sequence is:
$r=\dfrac{15}{5} = 3$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 11 - Section 11.3 - Geometric Sequences and Series - Exercise Set - Page 854: 1
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