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: 5

Answer

D \$18.80

Work Step by Step

Convert the word problem into an algebraic expression for the cost of shipping. Let x be the weight of the package. $\underbrace{\$0.85\ per\ pound}\ \underbrace{plus}\ \underbrace{a\ flat\ fee\ of\ \$12}$ $\ \ \ \ \ \ \ \ \ \ 0.85x\ \ \ \ \ \ \ \ \ \ \ \ \ +\ \ \ \ \ \ \ \ \ \ \ \ 12.00\ \ \ \ \ \ \ \ \ \ \ \ =cost$ Substitute 8 pounds for x to find the cost of shipping. $0.85(8)+12.00=6.80+12.00=18.80$
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