train.. one mile long... tunnel.. one mile long.. 15 miles per hour
2006-08-31 10:35:53 · 8 answers · asked by melissa w 1 in Education & Reference ➔ Primary & Secondary Education
this is a math problem that my daughter has on a math sheet.. so no book.
2006-08-31 10:57:37 · update #1
8 minutes
60/15 = It would take 4 minutes per mile, however, since the train is also a mile long, it would take twice the time, so 8 minutes.
2006-08-31 10:41:28 · answer #1 · answered by speedyglz 1 · 0⤊ 0⤋
there are 60 minutes in an hour right?
so figure out how many miles per minute the train can go....
15 divided by 60 = .25
So the train can go .25, or 1/4, a mile a minute.
Take 1 mile divided .25 and you get 4. So the train takes 4 minutes to get through the tunnel.
2006-08-31 10:40:49 · answer #2 · answered by Jenni34 1 · 0⤊ 0⤋
8 minutes
2006-08-31 10:42:44 · answer #3 · answered by Pey 7 · 0⤊ 0⤋
8 minutes
2006-08-31 10:41:33 · answer #4 · answered by the greg 5 · 0⤊ 0⤋
4 minutes
2006-08-31 10:41:10 · answer #5 · answered by Anonymous · 0⤊ 0⤋
speed = distance / time
time = distance / speed
time = 1 mile / 15 miles per hour
time = 1/15 hours
time = 0.67 hours or 40.2 minutes
2006-08-31 10:38:58 · answer #6 · answered by lemons 3 · 0⤊ 0⤋
8 minutes ?
2006-08-31 10:39:12 · answer #7 · answered by riskytrades 1 · 0⤊ 0⤋
MATH PROBLEM. OPEN MATH BOOK. READ CHAPTER. SHOULD TELL YOU HOW TO DO THIS PROBLEM.
2006-08-31 10:38:45 · answer #8 · answered by Anonymous · 0⤊ 0⤋