Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.1 Solving Linear Equations - 1.1 Exercises: 27

Answer

a. $P=250+0.07(s)$ b. $P=390 dollars$ c. $s=5714.29 dollars$

Work Step by Step

a. $P=250+0.07(s)$ b. $s=2000$ $P=250+0.07(2000)$ $P=250+140$ $P=390$ c. $P=650$ $650=250+0.07(s)$ $650-250=0.07(s)$ $400=0.07(s)$ $400\div0.07=s$ $s=5714.29$
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