Question 259810
Towns A and B are 300km apart.
 A man travels from A to B at a speed of 120km/h and a woman travels from B to A at a speed of 80km/h. 
The woman begins her journey 15 minutes after the man does.
 How far away from B will they meet?
:
Let d = distance traveled by the woman (from town B)
Then
(300-d) = distance traveled by the man (from town A)
:
Change 15 min to .25 hrs
:
Write a time equation: Time = dist/speed
Man's travel time = woman's travel time + 15 min (.25 hr)
{{{((300-d))/120}}} = {{{d/80}}} + .25
:
That's the equation, if you need further help, let me know via student comment
I'll edit this and include the solution