SOLUTION: Suppose the perimeter of a triangular lot is 100 m. If the length of the shortest side is 10 m less than the middle-length side and the length of the longest side is 25 m more than

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Question 363745: Suppose the perimeter of a triangular lot is 100 m. If the length of the shortest side is 10 m less than the middle-length side and the length of the longest side is 25 m more than the shortest side, determine the length (in m) of the middle-length side
i don't really know how to start this
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
S=short length
M=middle length
L=long length
S%2BM%2BL=100
.
.
.
S=M-10
M=S%2B10
.
.
L=25%2BS
Substitute,
S%2BS%2B10%2B25%2BS=100
3S=65
S=65%2F3
M=S%2B10
M=65%2F3%2B30%2F3
highlight%28M=95%2F3%29m