SOLUTION: Granville and preston are 642 miles apart. A car leaves preston bound for granville at 50mph. At the same time, another car leaves Granville bound for preston at 57mph. How long wi

Question 988659: Granville and preston are 642 miles apart. A car leaves preston bound for granville at 50mph. At the same time, another car leaves Granville bound for preston at 57mph. How long will it take them to meet?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The easiest way to solve this is to
think of one car as standing still and
the other traveling at the sum of their speeds
( it doesn't matter which one is standing still )
----------------
Let = time in hrs for them to meet

It takes 6 hrs for them to meet
----------------------------
check:

mi
and

mi
------------------

mi
OK

RELATED QUESTIONS
Granville and Preston are 528 miles apart. A car leaves Preston bound for Granville at 47 (answered by mananth)

Granville and Preston are 550 miles apart. A car leaves Preston bound for Granville; at... (answered by josmiceli)

Ashford and Bartlett are 315 miles apart. A car leaves Ashford bound for Bartlett at 50... (answered by josmiceli)

i need the formula for this problem a car leaves Rockford, Illinois, at the rate of 65... (answered by josgarithmetic,stanbon)

a car leaves Rockford, Il at teh rate of 65mph bound for Madison,WI. At the same time, a... (answered by lwsshak3)

Please help. The question is: New York City and Washington D.C. are about 240 miles... (answered by dukesmart)

two cities are 315 miles apart. A car leaves city A towards city B at 50mph. At the same... (answered by rwm)

New York City and Washington DC are about 240 mile apart. A car leaves New York City at... (answered by Paul)

I need help setting up this distance word problem. Chicago and Green Bay are about 200 (answered by lwsshak3)