Question 867052
w and L;
L=3w+5;
{{{2w+2(3w+5)=80}}}
{{{8w+10=80}}}
{{{4w+5=40}}}
{{{4w=35}}}
{{{highlight(w=35/4)}}}
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{{{L=3(35/4)+5(4/4)}}}
{{{L=(105+20)/4}}}
{{{highlight(L=125/4)}}}
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The dimension sizes kept in improper fraction form for ease in calculating the requested area.
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AREA, {{{wL=(35/4)(125/4)=highlight(4375/16)}}}
Or
{{{highlight(273&7/16)}}} square feet.