SOLUTION: the area of a rectangular garden is 72. the width is 5 meters longer than one- third of the length. find the length and the width of the garden.

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Question 447039: the area of a rectangular garden is 72. the width is 5 meters longer than one- third of the length. find the length and the width of the garden.
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
x(1/3x+5)=72
1/3x2+5x=72
x2+15x-216=0
(x+24)(x-9)=0
x=-24 or 9
Throwing out the negative answer, we get the length to be 9 m., the width to be 8 m..