Question

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 3x + 40, and the other angle measures 80.

16.6
20
26.7
40

Answer 1

x = 20 hope this helps :)

Explanation:

Answer 2

supplementary angles add up to 180 degrees and with the given information you should be able to get the equation (3x+40)+80=180. Simply solve for X from there. X should equal 20.