Question

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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?

45°
60°
120°
135°

Answer 1

both angles are supplementary, add to 180 degrees
so if X = 3Y and we know X + y = 180
we can say 3y+y=180
once we find y we can plug into this equation (x = 3y) to find x

Answer 2

\(\color{#0cbb34}{\text{Originally Posted by}}\) @darkknight
both angles are supplementary, add to 180 degrees
so if X = 3Y and we know X + y = 180
we can say 3y+y=180
once we find y we can plug into this equation (x = 3y) to find x
\(\color{#0cbb34}{\text{End of Quote}}\)
oh ok

Answer 3

or we can do
x = 3y same thing as x/3 = y
so x + x/3 = 180 and solve for x. either way works

Answer 4

\(\color{#0cbb34}{\text{Originally Posted by}}\) @darkknight
or we can do
x = 3y same thing as x/3 = y
so x + x/3 = 180 and solve for x. either way works
\(\color{#0cbb34}{\text{End of Quote}}\)
uh so its 135?

Answer 5

yes, congrats

Answer 6

\(\color{#0cbb34}{\text{Originally Posted by}}\) @darkknight
yes, congrats
\(\color{#0cbb34}{\text{End of Quote}}\)
Thanks lad.