Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice: 11

Answer

A) $-32.50

Work Step by Step

Convert the word problem into an algebraic expression to determine the change in value. $\underbrace{100\ shares\ decr\ by\ \$0.40/share\ }\underbrace{30\ shares\ incr\ by\ \$0.25/share}$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 100\times(-0.40)\ \ \ \ \ \ \ \ \ \ +\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 30\times0.25\ \ \ \ \ $ Use the order of operations to find the change in value. $100\times(-0.40)+30\times0.25\longrightarrow$multiply $=-40+7.50\longrightarrow$ add $=-32.50$ The change in value is -$32.50.
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