Elementary Algebra

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

Chapter 3 - Equations and Problem Solving - Chapter 3 Review Problem Set - Page 137: 41

Answer

The angle we need to find is 52 degrees.

Work Step by Step

Let X represent the angle we need to find. The supplement of this angle is 180 - X. The complement of this angle is 90 - X. We know that the supplement of the angle is 14 more than three times the complement of the angle. Three times the complement of the angle means 3 $\times$ (90 - X) = 270 - 3X. 14 more than three times the complement of the angle means 270 - 3X + 14 = 284 - 3X. The supplement of the angle is 284 - 3X. Also, it is 180 - X. So, we solve the following equation: 284 - 3X = 180 - X 104 = 2X Divide both sides by 2: X = 52 The angle we need to find is 52 degrees.
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