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please, hw help?

If m a. value of x.
b. m http://www.crunchyroll.com/user/babiixjen_x3/photos/1450867

2007-08-01 10:03:09 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

1 answers

The angles are supplementary, assuming AB is parallel to CD.

m (3x - 40) + (x + 20) = 180
4x - 20 = 180
4x = 200
x = 50

m m m m

2007-08-01 10:05:44 · answer #1 · answered by McFate 7 · 0⤊ 0⤋

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