SOLUTION: two supplementary angles have degree measures in the ratio 5:4 find the degree measure of the largest angle

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Question 939458: two supplementary angles have degree measures in the ratio 5:4
find the degree measure of the largest angle
Answer by ewatrrr(24785) About Me  (Show Source):
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two supplementary angles have degree measures in the ratio 5:4
Let x represent the constant of proportionality
5x + 4x = 180°
9x = 180°
x = 20°
....
these supplementary angles are: 80°, 100°