Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 4 - Section 4.1 - Solving Linear Inequalities - Exercise Set - Page 264: 61

Answer

More than a $32,000\space dollar$ price would make the first bill a better deal for the homeowner.

Work Step by Step

Let the price range of home assessment be $x$. The first bill price is $\$1800$ plus $3\%$ of assessed home value. The second bill price is $\$200$ plus $8\%$ of assessed home value. In the mathematical form. The first bill price $=1800+0.03x$. The second bill price $=200+0.08x$. For the first bill to be the better deal the inequality is. The second bill price $>$ The first bill price. The inequality is $\Rightarrow 200+0.08x>1800+0.03x$. Add $-200-0.03x$ to both sides. $\Rightarrow 200+0.08x-200-0.03x>1800+0.03x-200-0.03x$. Simplify. $\Rightarrow 0.05x>1600$. Divide both sides by $0.05$. $\Rightarrow \frac{0.05x}{0.05}>\frac{1600}{0.05}$. Simplify. $\Rightarrow x>32,000$. More than a $32,000\space dollar$ price would make the first bill a better deal for the homeowner.
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