Answer
$x = 7$
Work Step by Step
$\frac{x-1}{10} = \frac{3}{5}$
$(x-1)\times5 = 3\times10$
$5x - 5 = 30$
$5x = 35$
$x = 7$
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 216: 6a
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