I need to write at least 20 charachers,soooooo...
The sum of all angles in a regular octagon is 1080 degrees. Because all sides are the same (regular octagon), all of the eight angles are the same too, so we simply divide 1080 by 8 and that is the solution.
1080/8 = 135
X=3.2 I believe that's your answer
Given:
Multiply both sides by 3/2, we get
Cancel out the common multiples, we get
The solution of the given equation is
or
X-the $5 bills
y-the $10 bills
x+y=20
5x+10y=120
It's a system.