Intermediate Algebra (6th Edition)

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

Chapter 6 - Test - Page 406: 26

Answer

The number is 5.

Work Step by Step

First, we translate the given phrase into an equation: $$(1+x) (\frac{2}{x}) = 12/5$$ This gives: $$ \frac{2+2x}{x}= \frac{12}{5}$$ We cross multiply: $$ 10 +10x = 12x$$ This gives: $$ 2x = 10$$ $$ x = 5 $$
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