Question 474038
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Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">

length is 10 yards less than three times the width
Let x and ( 3x-10) represent the width and length respectively
Question states***
 2(3x-10) + 2x = 92yd
Solving for x 
        8x = 112yd
         x = 14yd, the width.  The length is 32yd    (42-10)
CHECKING our Answer***
  64yd + 28yd  = 92yd