They are moving apart at 70 miles per hour - 30 plus 40. Therefore, in 3 hours they will be 210 miles apart.
3.5 hours [A+]
520
How long will it take them to be 650 miles apart... someone plz answer now
x will be the time in hours, so your equation is 55x+48x=49You can add the like terms together to get 103x=49You can divide by 103 to get x=49/103, or about 0.4757281 hours, or 28 minutes and 32.62116 seconds.
Exact value means you do not approximate. So if you answer has a radical in it, you leave the radical and do not approximate it. If it has a fraction such as 1/3, you leave it and do not approximate it as .3 or .33 or even.333333333333333...
3.5 hours [A+]
Going in opposite directions, they separate at the rate of (90 + 120) = 210 miles per hour.They are 735 miles apart after (735/210) = 3.5 hours.
All Amtrak intercity trains leave from Penn Station.
You don't have quite enough information to solve this question. You need to know; 1) are the trains going in opposite directions? If not, then they may never meet 2) did the trains leave from the same station? 3) did the trains leave at the same time? 4) did the trains leave travelling at their stated speeds? Love to help, but, as stated, can't
Then the speed of the slower train in miles per hour is eight more than 380 divided by the number of hours the trains have been traveling. If you want a more precise answer, you need to supply more data.
3 hours.
If they are traveling in opposite directions, then they are traveling away from each other at a speed of 95 miles per hour. 380/95=4 They have been traveling for four hours.
12
Unit trains leave one city and end at a second without any stops for switching cars in or out of the train.
Chicago :P Peter Cetera from Chicago
Leave It to Beaver - 1957 Beaver's Electric Trains 5-17 was released on: USA: 27 January 1962
4 and a half hours. Each hour the trains are separate by 136km (64+72). 612 divided 136 gives you 4.5 hour