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 - Exercise Set 6.3 - Page 376: 68


It does not make sense.

Work Step by Step

Let \[x\] be the original price of computer. Reduced computer price is \[\$780\]. It means, \[\begin{align} & x-0.35x=780 \\ & 0.65x=780 \\ & x=\frac{780}{0.65} \\ & x=1,200 \end{align}\] The original price of computer is \[\$1,200\]. So, \[x-0.35x=780\] is the correct equation of a problem which is not given in the problem. Hence, the provided statement does not make sense.
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