SOLUTION: A train track is 450 miles long. On one end of the track, Train A leaves the station at 4PM. On the opposite end of the track, Train B leaves leaves at 6PM. If Train A travels 45 m

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A train track is 450 miles long. On one end of the track, Train A leaves the station at 4PM. On the opposite end of the track, Train B leaves leaves at 6PM. If Train A travels 45 m      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 431662: A train track is 450 miles long. On one end of the track, Train A leaves the station at 4PM. On the opposite end of the track, Train B leaves leaves at 6PM. If Train A travels 45 mph and Train B travels 60 mph, when will they meet?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Train A got a 2 hour head start. At 45 mi/hr
+d%5B1%5D+=+45%2A2+
+d%5B1%5D+=+90+ miles is the head start
At 6 PM the trains are +450+-+90+=+360+ miles apart
you can think of one train standing still and the other
heading towards it at the sum of their speeds
+360+=+%2845+%2B+60%29%2At+
+t+=+360%2F105+
+t+=+24%2F7+
+t+=+3.429+ hrs
They meet at 9:26 PM (to nearest minute)