Elementary Algebra

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 162: 61

Answer

t = 15.4

Work Step by Step

0.2(t + 1.6) = 3.4 Use the distributive property. 0.2t + 0.32 = 3.4 Multiply both sides by 100 to clear the equation of all decimals. 20t + 32 = 340 Subtract 32 from both sides. 20t = 308 Divide both sides by 20. t = 15.4
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