Elementary Algebra

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

Chapter 3 - Equations and Problem Solving - 3.3 - More on Solving Equations and Problem Solving - Problem Set 3.3: 58

Answer

55

Work Step by Step

We call c the number of commissions he makes: $$ 960 = 300 + 12 c \\ 660 = 12c \\ c = 55$$
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