consider the diagram of supplementary angles.

128˚ 5x˚

what is the value of x?

10.4

52

61.6

92

1 answer

To find the value of x, we need to use the fact that supplementary angles add up to 180 degrees.

So, we have:

128 + 5x = 180
5x = 180 - 128
5x = 52
x = 52/5
x = 10.4

Therefore, the value of x is 10.4.