Two angles are supplementary. One angle measures 10degree less than 3 times the other. What are the measures of the two angles?
2007-09-20 15:11:44 · 4 answers · asked by DoWHATiDO 3 in Science & Mathematics ➔ Mathematics
Supplimentary means A + B = 180
A = 3B -10
so 4B -10 = 180
4B = 190
B = 47.5
A = 132.5
2007-09-20 15:23:04 · answer #1 · answered by Computer Guy 7 · 0⤊ 0⤋
Supplementary means they add up to 180 degrees. If one angle measures 10 degrees less than 3 times the other you can set up an algebra equation that represents that.
x = angle 1
x+(3x-10) = 180
4x-10=180
4x= 190
x=47.5
which means angle 2 is 47.5*3-10 or 132.5
2007-09-20 22:20:56 · answer #2 · answered by Craig B 2 · 0⤊ 0⤋
A + B = 180
A = 3B - 10
so; 3B - 10 + B = 180
4B - 10 = 180
4B = 190
B = 47.5
A = 180 - 47.5 = 132.5
2007-09-20 22:23:51 · answer #3 · answered by Steve B 6 · 0⤊ 0⤋
y = 3x - 10
(3x - 10) + x = 180
4x - 10 = 180
4x = 190
x = 47.9
Angle 1 = 47.5
Angle 2 = 132.5
2007-09-20 22:18:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋