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Two trains going in opposite directions leave at the same time Train B travels 10 mph faster than train A In 3 hours the trains are 390 mph apart Find the speed of each?
Wiki User
∙ 13y ago
Train A is going 60 miles per hour
Train B is going 70 miles per hour
Let rA = x, then rB = x + 10, and t = 3, then
trA + trB = 390
3x + 3(x + 10) = 390
3x + 3x + 30 = 390
6x = 360
x = 60
x + 10 = 60 + 10 = 70
Wiki User
∙ 13y ago
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Wo trains leave the station at the same time going in opposite directions One of the trains travels at 90 mph and the other is traveling at 120 mph After how many hours will they be 735 miles apart?
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.
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Two trains leave the station at the same time going in opposite directions One of the trains travels at 90 mph and the other is traveling at 120 mph After how many hours will they be 735 miles apart?
3.5 hours [A+]
Wo trains leave the station at the same time going in opposite directions One of the trains travels at 90 mph and the other is traveling at 120 mph After how many hours will they be 735 miles apart?
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.
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