SOLUTION: A rectangular garden is fenced on three sides with a wall forming the fourth side. the total length of the fence is 80m. the area of the garden is 750m squared. find the dimensio

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: A rectangular garden is fenced on three sides with a wall forming the fourth side. the total length of the fence is 80m. the area of the garden is 750m squared. find the dimensio      Log On


   

Question 1114872: A rectangular garden is fenced on three sides with a wall forming the fourth side. the total length of the fence is 80m. the area of the garden is 750m squared. find the dimensions of the garden.

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
system%282x%2By=80%2Cxy=750%29

x%2880-2x%29=750
-2x%5E2%2B80x-750=0
or, x%2840-x%29=375
-x%5E2%2B40x-375=0
x%5E2-40x%2B375=0
%28x-15%29%28x-25%29=0

If x=15 then y=50.
If x=25 then y=30.