SOLUTION: Fidn the measures of two complementary angles, angle A and angle B, if the measure of angle A = 7x+4 and the measure of angle B = 4x+9. Thanks!

Algebra ->  Triangles -> SOLUTION: Fidn the measures of two complementary angles, angle A and angle B, if the measure of angle A = 7x+4 and the measure of angle B = 4x+9. Thanks!      Log On


   

Question 27225: Fidn the measures of two complementary angles, angle A and angle B, if the measure of angle A = 7x+4 and the measure of angle B = 4x+9.
Thanks!
Answer by jb007mi6(53) About Me  (Show Source):
You can put this solution on YOUR website!
since the angles are complimentary, that means the two angles are = 90 degrees.
so
(7x+4)+(4x+9)=90
this is
11x+13=90
11x=77
x=7
plug this into A and B and get
7(7)+4=49+4=53 angle A is 53
4(7)+9=28+9=37 angle B is 27
*53+27=90...so you know it's right