4:1 is the answer............
There are infinitely many solutions to this system of equations because they are actually the same. If you add 4 to both sides of the second equation, you get y-4+4=x+4, which simplifies to y=x+4. This is in fact the same as the first equation. Since you are dealing with two lines that lie on top of each other, there are infinitely many solutions.
12p + 7 > 139
subtract 7 from both sides
12 p > 132
divide both sides by 12
p > 11
Answer:
i think the answer is x=5
Just add up the lengths of the four sides, and you have the perimeter.
The perimeter is:
(4x-7)*2 + (10x^2+4x-2)*2 =
8x-14 + 20x^2+8x-4 =
20x^2 + 16x - 18
