Question 812822
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Hi,
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the perimeter of a rectangle is 156, width is 20% the length 
Let x represent the length, then width is .20x
Question states***
 2x + 2(.20x) = 156

Solving for x
  2.4x = 156
     x = 65, the length. the width is 13 units
CHECKING our Answer***
  2*65 + 2*13 = 156