Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.4 - Formulas and Percents - Exercise Set - Page 154: 80

Answer

We see that the statement is false. In order to make the statement true, the fraction needs to be inverted. We change the statement into the following to make it true: If $A = lw$, then $w = \frac{A}{l}$.

Work Step by Step

We want to solve this equation for $w$, so we need to isolate $w$. We divide each side by $l$ to get $w$ by itself: $$w = \frac{A}{l}$$ We see that the statement is false. In order to make the statement true, the fraction needs to be inverted. We change the statement into the following to make it true: If $A = lw$, then $w = \frac{A}{l}$.
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