SOLUTION: If 10% of an angle 'a' is the complement of 40% of 'a', find 'a'?

SOLUTION: If 10% of an angle 'a' is the complement of 40% of 'a', find 'a'?

Algebra.Com

Question 309971: If 10% of an angle 'a' is the complement of 40% of 'a', find 'a'?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
40% of a = 0.4a
10% 0f a = 0.1a
The sum of these = 90 deg
0.4a+0.a = 90
0.5a = 90
multiply by 10
5a= 900
a= 180
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