## Algebra 1

Published by Prentice Hall

# Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice - Page 75: 11

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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