<PRE><B>Question 646247</B>
Let {{{ x }}} = the number of gallons
to fill the tank
The car starts with
{{{ (1/3)*x + 10 = (3/4)*x }}}
Multiply both sides by {{{ 12 }}}
{{{ 4x + 120 = 9x }}}
{{{ 5x = 120 }}}
{{{ x = 24 }}}
-----------
The tank is 3/4 full, so 1/4 of a tank will fill it
{{{ (1/4)*24 = 6 }}}
6 more gallons will fill the tank
                                                   </PRE>