Question 87794

        let the width of the rectangular field be=x
       the length of the field=2x-5
       perimeter of the field=230 ft  i.e. p = 2l+2b=2(2x-5)+2x=4x-10+2x=6x-10
                             6x-10 = 230
                            6x=230+10=240  i.e. 6x=240  x=240/6=40
                      width = 40ft   length=2.40-5=80-5=75ft 
        length = 75ft  and width = 40ft