Question 452530
Rectangle has two sides, width=w and length=l.
:
Its perimeter is {{{P=2(w+l)}}}
Its area is {{{A=wl}}}
:
Perimeter is 70:
{{{2(w+l)=70}}}
{{{w+l=35}}}
{{{w=35-l}}}
:
The length is 5m more than twice the width:
{{{l=2w+5}}}
:
Substitute w from first equation into the second:
{{{l=2(35-l)+5}}}
{{{l=70-2l+5}}}
{{{3l=75}}}
{{{l=75/3}}}
{{{l=25}}}, this is length
:
{{{w=35-l}}}
{{{w=35-25}}}
{{{w=10}}}, this is width