Question

Consider the diagram of supplementary angles.
128°/5x°
What is the value of x?
a 10.4
b 52
C 61.6
d 92

Answer 1

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

So, you can set up the equation:

128 + 5x = 180

Subtract 128 from both sides:

5x = 52

Divide by 5:

x = 52 / 5

x = 10.4

Therefore, the value of x is 10.4.

So the correct answer is a) 10.4.