Question 636572
Amy has a garden in the shape of a rectangle. 


given:

the length {{{L}}} is {{{2m}}} more than {{{twice}}} its width {{{W}}}, which is

 {{{L=2W+2m}}}

if she has at most {{{70m}}} of fencing, means that perimeter {{{P}}} could be {{{70m}}} or less

{{{P=2(L+W)}}}....replace {{{L=2W+2m}}}

{{{70m>=2(2W+2m+W)}}}

{{{70m>=2(3W+2m)}}}

{{{70m>=6W+4m}}}

{{{70m-4m>=6W}}}

{{{66m>=6W}}}

{{{66m/6>=W}}}

{{{11m>=W}}}.........or......{{{W<=11m}}}

so, the greatest width her garden can be {{{W=11m}}}