<PRE><B>Question 286696</B>
a ship sails from ny to england at 33 mph and a plane starts at the same time at 605 mph.
 The plane arrives in england 104 hours less time than the ship.
 How far is it from ny to england 
:
Let d = dist from NY to England
:
Write a time equation: time = dist/speed
:
Ship time - plane time = 104 hrs
{{{d/33}}} - {{{d/605}}} = 104
:
Multiply equation by 19965 (33*605)
605d - 33d = 19965(104)
:
572d = 2076360
d = {{{2076360/572}}}
d = 3,630 miles
:
:
Check solution in original equation:
{{{3630/33}}} - {{{3630/605}}} = 
110 - 6 = 104 hrs</PRE>