Question

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

Picture Will Be Attached!

16.6
20
26.7
40

Answer 1

@jimthompson5910 can you help me with this?

Answer 2

Not B Not C

Answer 3

Are you sure it is not B?

Answer 4

i think is A

Answer 5

The two angles shown form a straight angle which is 180 degrees

So this means
(angle on the left) + (angle on the right) = 180
(3x+40) + (80) = 180
x = ??

Answer 6

I can't figure it out

Answer 7

The 40 and 80 are like terms that combine to 40+80 = 120

This means
(3x+40) + (80) = 180
becomes
3x+120 = 180

Answer 8

We need to undo that +120
How can we do this?

Answer 9

Wait, Is it the second one?

Answer 10

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jimthompson5910
The two angles shown form a straight angle which is 180 degrees

So this means
(angle on the left) + (angle on the right) = 180
(3x+40) + (80) = 180
x = ??
\(\color{#0cbb34}{\text{End of Quote}}\)
I found out x

Answer 11

its 20 right?

Answer 12

Yes because,
3x+120 = 180
3x = 180-120
3x = 60
x = 60/3
x = 20

Answer 13

Thank you!