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26 June, 17:35

Two angles are complementary is the sum of their measures is 90 degrees. The measure of the first angle is 36 degrees more than 3 times the second angle. Find the measure of the first angle

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  1. 26 June, 17:55
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    x + y = 90

    x = 36 + 3y

    x = 36 + 3 (90 - x)

    x = 36 + 270 - 3x

    4x = 306

    x = 153/2 = 76.5 degrees

    Answer: 76.5 degrees

    Check: y=90=76.5 = 13.5 degrees

    3y+36 = 3 (13.5) + 36 = 76.5 good
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