Question 1197404


let the length be {{{L}}} and the width {{{W}}}

if a rectangular field is {{{five}}} times as long as it is wide, we have

{{{L=5W}}} ......eq.1


if the perimeter of the field is {{{960}}} feet, we have

{{{2(L+W)=960}}} 

{{{L+W=960/2}}} 

{{{L+W=480}}} ..........eq.2


substitute {{{L}}} from eq.1

{{{5W+W=480}}} 

{{{6W=480}}} 

{{{W=480/6}}} 

{{{W=80}}} 


go to

{{{L=5W}}} ......eq.1, substitute {{{W}}} 

{{{L=5*80}}}

{{{L=400}}}


 the dimensions of the field are {{{400ft}}} by {{{80ft}}}