Question 393791
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Hi
width is two-thirds of the length
Let x and (2/3)x represent the length and width respectively
 P = 2L + 2W
Question states***
  2x + 2(2/3)x = 48ft
solve for x
 2x + (4/3)x = 48ft    |multiplying each term by 3 so as all denominators = 1
 6x + 4x = 48ft*3
     10x = 144ft
       x = 14.4ft, the length.  the width is 2/3*14.4 = 9.6 ft
  28.4 + 18.2 = 47.6 = 48 ft