Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 6 - Algebra: Equations and Inequalities - 6.3 Applications of Linear Equations - Concept and Vocabulary Check - Page 373: 4


Fill the blank with $0.85x$

Work Step by Step

If the original price is x, we can say that ($ 100\%$ of the price) is x. A reduction of 15$\%$ means that I pay $ 100\%-15\%=85\%$ of the full price. $85\displaystyle \%=\frac{85}{100}=0.85.$ "(fraction) of (quantity)" is written as (fraction) $\times$ (quantity). So, the price I pay is $(0.85)$ of (x) or $0.85x$. Fill the blank with $0.85x$
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