Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 660: 17

Answer

$-1\frac{5}{8}$

Work Step by Step

We have $$-m-3n$$ Where $m = \frac{1}{2}$, $n=\frac{3}{8}$ Then if you substitute each letter by her value $$-\frac{1}{2} - 3*\frac{3}{8} = -\frac{1}{2} - \frac{9}{8} = \frac{-4-9}{8} = \frac{-13}{8} = -1\frac{5}{8}$$
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