Two trains leave a train station at the same time. One travels east at 9 miles per hour. The other train travels west at 10 miles per hour. In how many hours will the two trains be 167.2 miles apart?
2007-10-22 08:25:44 · 6 answers · asked by amy f 1 in Cars & Transportation ➔ Rail
X = hours, therefore 9X+10X = 167.2
19X = 167.2
X= 167.2/19
X = 8.8
9 x 8.8 = 79.20
10 x 8.8 = 88.00
time = 8.8 hours
2007-10-22 13:33:06 · answer #1 · answered by Richard F 2 · 2⤊ 0⤋
The trains are increasing the distance between them at a rate of 19 mph.
167.2 divided by 19 = ?
2007-10-22 15:59:39 · answer #2 · answered by Samurai Hoghead 7 · 1⤊ 0⤋
well, does your problem say how long the trains are? since some trains are over a mile long, are you measuring the distance between the head ends (engines) or the last cars? hehe have fun
2007-10-23 12:33:40 · answer #3 · answered by QueenA 3 · 1⤊ 0⤋
167.2 divided by 19 =8.8
2007-10-23 16:05:52 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Just a tip: it is 24 hrs in a day and 60 min. in a hour
you do the math using your average speed of travel and the total miles for your destination and the answer is................???
2007-10-22 15:45:31 · answer #5 · answered by Tennessee Mom 4 · 0⤊ 1⤋
For a start, this is a mathematical problem, not a word one. But why not post it on the homework help page. It really has nothing to do with this part of the board, other than you have been set a problem involving trains - but it could just have easily been cars or bicycles (at the speed)
2007-10-22 16:19:32 · answer #6 · answered by rdenig_male 7 · 1⤊ 4⤋