Answer
$30$
Work Step by Step
$\dfrac{27}{x} = \dfrac{9}{10}$
Cross multiply
$9x = 270$
$x = 30$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 7 - Section 7.2 - Solving Percent Problems with Equations - Exercise Set - Page 484: 49
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