<PRE><B>Question 941561</B>
perimeter  = 310  meters
let x be the width of rectangle
 length  = 4*x+5
Perimeter  =  2 (length+width)
 310 =2((4x+5)+x)
 310 =2(5x+5)
  divide with 2 on both sides
 {{{310/2 = 2(5x+5)/2}}}
 {{{ 155 =5x+5}}
 155-5 =5x
150 =5x
 divide with 5 on both sides
 {{{ 150/5 = 5x/5}}}
 {{{ 30 =x}}}
 width(x)=30  m
length  = 4x+5
              = 4*30+5
       =120+5
      =125
Length  =125 m
Result: length  = 125 m , width  = 30 m
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