<PRE><B>Question 676395</B>
Let {{{ x }}} = pounds of nuts needed
{{{ ( 2.5x + 4.5*2 ) / ( x + 2 ) = 3 }}}
( Note that {{{ 3 }}} means $3 per pound )
{{{ 2.5x + 9 = 3*( x + 2 ) }}}
{{{ 2.5x + 9 = 3x + 6 }}}
{{{ .5x = 9 - 6 }}}
{{{ .5x = 3 }}}
{{{ x = 6 }}}
6 pounds of nuts are needed
check answer:
{{{ ( 2.5*6 + 4.5*2 ) / ( 6 + 2 ) = 3 }}}
{{{ ( 15 + 9 ) / 8 = 3 }}}
{{{ 24 = 3*8 }}}
{{{ 25 = 24 }}}
OK 

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