Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 7 - Section 7.6 - Percent and Problem Solving: Interest - Exercise Set - Page 519: 35

Answer

$-\frac{131}{225}$

Work Step by Step

$(\frac{2}{3})(\frac{-1}{3}) - (\frac{9}{10})(\frac{2}{5})$ $= \frac{-2}{9} - \frac{18}{50}$ $= \frac{-2}{9} - \frac{9}{25}$ $= \frac{-50}{225} - \frac{81}{225}$ $=-\frac{131}{225}$
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