Please help will mark brainlest!!
1 answer:
Answer:
11
Step-by-step explanation:
The angles will equal 180.
Thus, the equation is 9x-5+6x+20=180.
15x+15=180.
15x=165.
divide by 15 on both sides, x = 11.
You might be interested in
Answer:
1.2

The error is the proportions are set wrong
Answer:
a=-b? That might be wrong, sorry. But that's what it sounds like.
Step-by-step explanation:
Answer:
3:4
Step-by-step explanation:
10 20 30 40 50 60
Step-by-step explanation: