I do not understand at all

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at
70 miles per hour. The westbound train travels at
90 miles per hour. How long will it take for the two trains to be 448 miles apart?
Do not do any rounding

Question

I do not understand at all

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 
70 miles per hour. The westbound train travels at 
90 miles per hour. How long will it take for the two trains to be 448 miles apart?
Do not do any rounding

anonymous · Answer

east would take 3.2 hours and west would take 2.488888888

anonymous · Answer

It is asking for one answer. How long it would take to be that far apart from eachother

anonymous · Answer

I think I figured it out

anonymous · Answer

5.68888888 i think

anonymous · Answer

Every hour they go a total of 160 miles apart

anonymous · Answer

So you would divide the total, 448, by 160

anonymous · Answer

im pretty sure it is 5.68888888

anonymous · Answer

Which gives you 2.8

anonymous · Answer

yes

anonymous · Answer

Okay I put that in and it was correct! thank you

anonymous · Answer

you are welcome

anonymous · Answer

welcome for nothing lol

anonymous · Answer

can u guys help me out with mine

anonymous · Answer

Sure and could you check out the one I just posted