Question 655273
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
width of the soccer field is the reciprocal of the length{{{highlight(x)}}}
 P = 2L + 2W = 20/3
0r    L + W = 10/3
Question states***
     {{{ x + 1/x = 10/3}}} |Multiplying thru by 3x so as all denominators = 1
    3x^2 + 3 = 10x
   3x^2 - 10x + 3 = 0
factoring
  (3x - 1)(x - 3) = 0
  x = 1/3 m  0r  x = 3m
Dimensions are:  1/3 m  by 3m