Question 549111
you can think of this as one car standing still and the other
driving away at the sum of their speeds
Let {{{t}}} = time when they are {{{ 440 }}} mi apart
{{{ 440 = ( 50 + 60 )*t }}}
{{{ t = 440 / 110 }}}
{{{ t = 4 }}}
They will be 440 mi apart in 4 hrs