Question 621980
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Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
the perimeter of a rectangle lawn is 38 units
 2L + 2W = 38  or L + W = 19   and L = 19-W
if the area of the lawn is 60 units^2,
 w(19-w) = 60
   19w - w^2 = 60
     w^2 - 19w + 60 = 0
factoring
  (w-15)(w-4) = 0,  w = 15 or 4 units.  dimension of the lawn is 15units by 4 units