Question 1177510

A wall: {{{L=31ft}}}

if  the length of stone is {{{x}}}, then {{{4}}} different lengths of stone to be used; 
{{{2.2x}}} ft.
{{{2.5x}}} ft.
{{{3x}}} ft.
{{{4.1x}}} ft

and their sum must be {{{31}}}


{{{2.2x+2.5x+3x+4.1x=31}}}
{{{11.8x=31}}}
{{{x=31/11.8}}}
{{{x=2.62712 }}} 

so, the lengths of stone are:

{{{2.2x=2.2*2.62712 =5.77}}}

{{{2.5x=2.5*2.62712=6.56}}}

{{{3x=3*2.62712=7.9}}}

{{{4.1x=4.1*2.62712=10.77}}}


check:

{{{5.77+6.56+7.9+10.77=31}}}
{{{31=31}}}