Question 416077

given:

the perimeter {{{P}}} of the pool is {{{36m}}}

{{{P=36}}} 

 twice the length {{{2L}}} is {{{4m}}} more then three times the width {{{3W}}}

{{{2L=3W+4m}}}...->....{{{L=(3W+4m)/2}}}

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

{{{36m=2((3W+4m)/2+W)}}}

{{{36m=2(3W+4m)/2+2W}}}

{{{36m=cross(2)(3W+4m)/cross(2)+2W}}}

{{{36m=3W+4m+2W}}}

{{{36m=5W+4m)}}}

{{{36m-4m=5W)}}}

{{{32m =5W)}}}

{{{32m/5 =W)}}}


{{{6.4m =W)}}}


{{{L=(3W+4m)/2}}}

{{{L=(3*6.4+4m)/2}}}

{{{L=(19.2+4m)/2}}}

{{{L=(23.2m)/2}}}

{{{L=11.6m}}}


{{{P=2(11.6m+6.4m)}}}


{{{36m=2(18m)}}}

{{{36m=36m}}}