A train traveling 90 miles per hour for 1 hour covers the same distance as a train traveling 60 miles per hour for how many hours? Explain your solution
2007-04-30 14:22:29 · 7 answers · asked by Sid 4 in Science & Mathematics ➔ Mathematics
Distance = rate X time so
The distance the first train goes is
D = 90 X 1 = 90 miles
The second train also needs to go 90 miles but you don't know time so plug in what you do know - distance and rate
90 = 60 x time
1.5 = time
So the second train needs 1 1/2 hours to go the same 90 miles.
2007-04-30 14:30:37 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Distance traveled is equal to speed of the train X time of travel.
90 miles per hour times 1 hour is 90 miles.
In order to travel a distance of 90 miles, a train traveling at 60 miles per hour must travel for 1.5 hours.
let x be the time of travel
90 = 60x
x = 1.5 hours
x
2007-04-30 21:31:01 · answer #2 · answered by jw 2 · 1⤊ 0⤋
90 miles / 60 mph = 1.5 hrs
How long will it take to go 90 miles at 60 mph is just distance / rate like usual.
2007-04-30 21:29:45 · answer #3 · answered by Don E Knows 6 · 1⤊ 0⤋
distance = rate * time
distance = 90 mph * 1 hrs = 60mph * x hrs
distance = 90 = 60 * x
90 = 60 * x
x = 90 / 60
x = 1.5 hours
2007-04-30 21:31:25 · answer #4 · answered by Tom K 2 · 1⤊ 0⤋
hour and 20 min
2007-04-30 21:28:33 · answer #5 · answered by Kristenite’s Back! 7 · 1⤊ 0⤋
1.5 hours
2007-04-30 21:28:08 · answer #6 · answered by Sean H 2 · 1⤊ 0⤋
please rewrite your problem. something is missing buddy.
2007-04-30 21:30:34 · answer #7 · answered by hacker_lexy 3 · 0⤊ 1⤋