SOLUTION: The ratio of an angle to its supplement is 5:4. What does the angle equal?

Question 919221: The ratio of an angle to its supplement is 5:4. What does the angle equal?
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The ratio of an angle to its supplement is 5:4. What does the angle equal?
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Angle:: x
Supplement:: 180-x
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Equation::
x/(180-x) = 5/4
4x = 900 - 5x
9x = 900
x = 100
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180-x = 80
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Cheers,
Stan H.
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Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

let = the angle and its supplement is
.......cross multiply

and its supplement is
check ratio

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