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 152: 18

Answer

$$d = \frac{11p}{5} - 33$$

Work Step by Step

To solve the equation for $d$, we need to isolate $d$. First, we subtract $15$ from each side: $$p - 15 = \frac{5d}{11}$$ Next, we multiply both sides by $11$: $$11(p - 15) = 5d$$ We then simplify this equation to make it easier to work with: $$11p - 165 = 5d$$ We then divide each side by $5$: $$d = \frac{11p}{5} - (165 \div 5)$$ Simplifying, we get: $$d = \frac{11p}{5} - 33$$
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