two trains are 500 miles apart when they first enter a colision course. If after, two hours the distance between them is 300 mil es and one train goes 20 mph faster than the other, find the speed of the faster train
1 answer:
Answer: 60mph
Step-by-step explanation:
500-300 = 200
200 = distance traveled in 2 hrs
100 = distance traveled every hour
100=2x+20, x being the slower train
80=2x
x=40
40+20 = 60, the speed of the faster train
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