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15 August, 20:06

Find the measure of each angle: Complementary angles with measures (5x) ° and (4x-18) °.

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  1. 15 August, 23:34
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    Complentary angles add to 90 degrees

    so

    5x+4x-18=90

    9x-18=90

    add 18 both sides

    9x=108

    divide both sides by 9

    x=12

    5x is one angle

    5x=5 (12) = 60 degrees

    the other one is 4x-18

    4x-18=4 (12) - 18=48-18=30

    the angles are 60 degrees and 30 degrees

    and x=12 degree
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