Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Appendix A - A.2 - Formulas and Equations - Exercises - Page 540: 35

Answer

$y = 32$

Work Step by Step

$m = (0.5)(x-y)$ $23 = (0.5)(78-y)$ $23 = 39 - \frac{1}{2}y$ $23 = 39 - \frac{y}{2}$ $-16 = - \frac{y}{2}$ $16 = \frac{y}{2}$ $y = 16 \times 2$ $y = 32$
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