if the train travels for another 30 miles, how fast would the train have to go in order to average 30 mph over the total distance.
2006-11-13 03:00:38 · 9 answers · asked by niddlie diddle 6 in Science & Mathematics ➔ Mathematics
not enough information.
Or you're not asking for an answer to the right bit of information.
2006-11-13 03:05:14 · answer #1 · answered by quntmphys238 6 · 0⤊ 3⤋
Train travels 30 miles at 30 mph therefore it has been moving for 1 hour.
If the train needs to travel another 30 miles then the total distance to calculate the speed is 60 miles.
What is missing is the time factor. If it is one hour then the train needs to be travelling at 30 mph to average 30 mph over the 60 miles. If the time factor to cover the rest of the distance is more or less than an hour then that will influence the speed needed to average the 30 mph over the total distance.
Did you accidentally miss something in your question?
2006-11-13 03:25:57 · answer #2 · answered by IB M 3 · 0⤊ 1⤋
If a train travels at 30 mph for 30 miles, then travels another 30 miles, the train would have to travel at 30 mph to average 30 mph for the entire distance.
2006-11-13 03:04:38 · answer #3 · answered by ballarke 3 · 1⤊ 0⤋
30 mph. If the train has been traveling any distance at 30 mph, and continues any further distance at 30 mph, its average speed will be 30 mph no matter what the distances involved are, because it will always have been traveling at 30 mph.
2006-11-13 03:02:58 · answer #4 · answered by DavidK93 7 · 1⤊ 0⤋
total distance travelled=30+30 miles
average speed=30mph
total time taken=60/30=2 hours
already it was on wheels for 1 hour
in i hour now it hasto cover 30 miles
it has to go at 30 mph
2006-11-13 03:04:53 · answer #5 · answered by raj 7 · 1⤊ 0⤋
30 mph
2006-11-13 03:58:36 · answer #6 · answered by abo balal 1 · 0⤊ 0⤋
30 MPH
2006-11-13 03:11:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
you must know how much time the train need to do the second 30 miles.
2006-11-13 03:11:41 · answer #8 · answered by Rina 2 · 0⤊ 1⤋
30mph
2006-11-13 03:03:00 · answer #9 · answered by yupchagee 7 · 1⤊ 0⤋