Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 3 - Equations and Problem Solving - 3.2 - Equations and Problem Solving - Problem Set 3.2 - Page 107: 74


The limousine was used for 4.5 hours.

Work Step by Step

Let X represent the number of hours that the limousine was used. A 80 dollars for each hour of use means 80X A 150 dollar fee for the service makes the expression 150 + 80X The bill from the limousine company was 510. So: 150 + 80X = 510 Subtract 150 from both sides 80X = 360 Divide both sides by 80 X = 4.5
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