Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 7 - Algebraic Fractions - 7.4 - Addition and Subtraction of Algebraic Fractions and Simplifying Complex Fractions - Problem Set 7.4 - Page 300: 70

Answer

$56/w$

Work Step by Step

We use the equation for area: $$ A = wl \\ 56 = wl \\ l = 56/w$$
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