Question

The angles below are supplementary. What is the value of x?

A pair of supplementary angles is shown. One angle measures 4x + 20, and the other angle measures 40.

5
7.5
15
30

Answer 1

@welshfella

Answer 2

@whpalmer4

Answer 3

@LegendarySadist

Answer 4

Supplementary angles are angles that add to 180. So \[40+4x+20=180\] Combine like terms \[60+4x=180\] Subtract the 60 \[4x=120\] Divide by 4 \[x=30\]

Answer 5

So D right

Answer 6

Right, since we're looking for the value of x.