SOLUTION: One side of triangle is one fourth the longest side. The third side is 9 feet less than the longest side. The perimeter 81. Find all three sides

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Question 1048558: One side of triangle is one fourth the longest side. The third side is 9 feet less than the longest side. The perimeter 81. Find all three sides




Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x the longest side
x/4 + (x-9) + x = 81 Multiplying thru by 4
x + 4(x-9) + 4x = 324
9x = 360
x = 40 units
40, 10, 31 are the lengths.
Sum = 81 CHECKS!