<span>2(30)+2x=860
This is because the 4 sides of the rectangle add up to the perimeter.
The unknown side is x, and there are two of those, and there are also two sides of 30.
They all add up to the perimeter.
So:
2(30) + 2x = 860</span>
Hey There!
win 10 lose 12
win 15 lose 18
5×2=10, 6×2=12
5×3=15, 6×3=18
Hope This Helps!!!
Answer:
10
Step-by-step explanation:
4x - 12 = -7x - 111
11x = -99
x = -9
