Question

PLZ HELP ASAP

Two angles are supplementary. The measure of one is 80% of the measure of the other. Find the measure of both angles.

Answer 1

180.

Explanation:

Given

x = 1%2F2y

x+y=180

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Substitute x into the second equation and solve for y, the larger angle

1%2F2y + y = 180

Multiply both sides by 2 to be rid of the fraction

y + 2y = 360

3y = 360

highlight_green%28y=120%29

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Check cartoon%28%0D%0A120+%2B+%281%2F2%29%28120%29%2C%0D%0A120+%2B+60%2C%0D%0A180%29

Answer 2

One angle is 50 and the other 40

The sum of both angles is 90

Explanation:

the second angle which is 40, is 80% of the first angle which is 50