Answer
$80^{\circ}$
Work Step by Step
Supplement of an angle is equal to 10 times its complement
$180-x = 10(90-x)$
$180-x = 900-10x$
$10x-x = 900-180$
$9x= 720$
$x= 80$
Angle $x= 80^{\circ}$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 2 - Section 2.2 - An Introduction to Problem Solving - Exercise Set - Page 68: 75
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