SOLUTION: Angles X and Y are supplementary angles. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

Question 1133333: Angles X and Y are supplementary angles. Angle X is 3 times the measure of angle Y. What is the measure of angle X?
Found 3 solutions by MathLover1, MathTherapy, Alan3354:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

supplementary angles are two angles whose sum is °
if angles and , we have
°
if angle is times the measure of angle , we have

=> °
°
°
°

=>

°

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Angles X and Y are supplementary angles. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

As one angle is X, the other (Y) is: 180 - X
We then get: X = 3(180 - X)
X = 540 - 3X
X + 3X = 540

That's ALL!!
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Angles X and Y are supplementary angles. Angle X is 3 times the measure of angle Y. What is the measure of angle X?
---------
X + Y = 180
X = 3Y
-----------
3Y + Y = 180
etc
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