Question 158493
Remember: {{{P[rect]=2(L+W)}}} --------------> working eqn
{{{L=2W+3yards}}}
{{{W=W}}}
{{{P[rect]=36yards}}}
So, {{{P[rect]=2(2W+3+W)}}}
{{{36=2(3W+3)}}}
{{{36=6W+6}}}
{{{6W=36-6=30}}}
{{{cross(6)W/cross(6)=cross(30)5/cross(6)}}}
{{{W=5yards}}}
And, {{{L=2(5)+3=10+3}}}
{{{L=13yards}}}
In doubt? Go back working eqn,
{{{36yards=2(13+5)}}}
{{{36yards=2(18)}}}
{{{36yards=36yards}}}
Thank you,
Jojo