168k views
19 votes
Ok this is my last one i need help with.

Ok this is my last one i need help with.-example-1

2 Answers

5 votes
The line is supplementary (add up to 180)
Make an equation
10x + 140 = 180
10x = 40, x = 4

The solution: x = 4
Which would be letter D
User Genny
by
3.6k points
3 votes
the answer is 4! x=4, the 2 angles must equal 180 degrees as they are a linear pair
140+10(4)=180
User Dustin Cochran
by
4.6k points