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

Angles X and Y are supplementary Angle X is 3 times the measure of angle Y What is the measure of angle X class=

Respuesta :

I think it would be 135 because:

x=3y, y=y

3y+y=180
4y=180
y=180/4
y=45,  so x=3(45)=135 degrees.

The measure of angle x is 135°

Supplementary angles sum up to 180°.

Therefore,

x + y = 180

Angle x is 3 times the measure of angle y. Therefore,

x = 3y

x + y = 180

3y + y = 180

4y = 180

y = 180 / 4

y = 45

x = 3y

x = 3 × 45

x = 135°

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