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What dimensions should the gardener use to obtain this area?

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A gardener has 100 meters of fencing to enclose two adjacent rectangular gardens. The gardener wants the enclosed area to be 286 square meters.


x=? m              y= ? m  (Smaller)

x= ? m             y=? m   (larger)

Oct 20th, 2017

Two rectangle areas =286

The fence will have width 3 times and length 4 times .

Each rectangle area= xy

2xy =286

xy =143

4x+3y =100

4xy = 572

(100-3y)y =572


3y2 -78y-22y+572=0



Y =26 or y =22/3

If y =26  then 4x = 100-78 =22  ;  x =5.5

If y =22/3  then  4x =100-22=78  ; x=19.5

Both the solutions are possible

If you want length larger then x =19.5 y =22/3

x= 19.5 y =22/3


x=5.5 y=26

Mar 8th, 2015

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