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15 November, 06:43

Two angles are supplementary. The first angle is 3x degrees. The second angle is (2x+25) degrees. Determine the measure of the smaller angle.

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  1. 15 November, 09:33
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    A = 3x

    b = 2x+25

    180 = a + b

    180 = 3x + 2x + 25

    180 = 5x + 25

    155 = 5x

    x = 31

    a = 3*31 = 93

    b = 2*31 + 25 = 87
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