Answer
The solution of this equation is x = 450.
Work Step by Step
0.09x + 0.1(2x) = 130.5
Use the distributive property to obtain:
0.09x + 0.2x = 130.5
0.29x = 130.5
Divide both sides by 0.29:
x = 450
The solution of this equation is x = 450.
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.3 - More on Percents and Problem Solving - Problem Set 4.3 - Page 161: 17
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