Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 93: 67


x=$46.00 per hour

Work Step by Step

Consider the left side to be the amount of money Dominique wants to make. She wants to make 100 dollars; however, she has already spent 15 dollars. So, she must actually make 100 + 15. Consider x to be the per hour rate she will make. She only has 2.5 hours to make that rate in order to make the 115 dollars: $100+15=2.5x$ Combine like terms. Then, continue on by dividing each side by 2.5 in order to arrive at the solution: $115=2.5x$ $115/2.5=2.5x/2.5$ $x=46$
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