I worked out the problem too, but I got a slightly different answer. The value for y is the same, but for x I got 14.58333333. In the second equation, I have 8x + 2y + 200 = 440. I am not sure where you got the extra 30.
2(x+y+45) + (70) + (40+6x) = 440 each side btm top/insides
It is weird that they would have decimals for the variables, but this is pre-algebra, so the kids have to get used to it. I think this whole problem is crazy because who would design a track like that?
After looking at it a second time, I was wrong about the 200 and you're right about the 230. I wasn't counting the lower part of the top side. So I think you're answer is correct (even if damn annoying.)
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2(x+y+45) + (70) + (40+6x) = 440
each side btm top/insides
It is weird that they would have decimals for the variables, but this is pre-algebra, so the kids have to get used to it. I think this whole problem is crazy because who would design a track like that?
I hope this was helpful, and good luck. :)
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