Solve.
Two angles are complementary if their sum is 90. If the measure of the first angle is x, and the measure of the second angle is (3x - 2), find the measure of each angle.
1st angle = 22; 2nd angle = 64
1st angle = 23; 2nd angle = 67
1st angle = 31; 2nd angle = 59
1st angle = 22; 2nd angle = 68
2007-06-11 16:21:22 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
If I'm understanding this correctly, you're looking for two complementary angles, one of which is x degrees, and the other of which is 3x-2 degrees.
This gives us the following equation:
x + (3x-2) = 90
4x -2 = 90
4x = 92
x = 23
... and if x=23, then 3x-2 = 67.
The 1st angle = 23, the second angle = 67.
2007-06-11 16:27:13 · answer #1 · answered by Bramblyspam 7 · 0⤊ 0⤋
x + 3x - 2 = 90
4x = 92
x = 92/4
x = 23
3x - 2 = 69 -2 = 67
So
1st angle = 23; 2nd angle = 67
2007-06-11 23:25:44 · answer #2 · answered by Carlos 3 · 0⤊ 0⤋
so just add x and 3x-2 and set equalt to 90. You get 4x-2 = 90, which any 5 year old can solve.
2007-06-11 23:25:13 · answer #3 · answered by Anonymous · 0⤊ 0⤋