Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Test - Page 207: 27

Answer

The angle we are looking for is $53$ degrees.

Work Step by Step

We know that complementary angles add up to $90$ degrees. Let us set one angle equal to $x$. Since the other angle is 16 degrees more than its complement, we will set this angle as $x + 16$. The equation we can use is: $$x + (x + 16) = 90$$ Distribute what is in parentheses to simplify the problem: $$x + x + 16 = 90$$ Simplify by adding the $x$ terms together: $$2x + 16 = 90$$ Subtract $16$ from both sides of the equation to isolate constants on the other side of the equation: $$2x = 74$$ Solve for $x$ by dividing both sides of the equation by $2$: $$x = 37$$ If one angle is $37$ degrees, then we can figure out the other angle is $16$ more than this angle: 2nd angle = $37 + 16$ The 2nd angle is $53$ degrees.
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