SOLUTION: One train runs 90% of the time and goes 55 mph any time it runs (no acceleration lag time) Another train runs 10% of the time. How fast does this train have to go (mph) to exceed t

SOLUTION: One train runs 90% of the time and goes 55 mph any time it runs (no acceleration lag time) Another train runs 10% of the time. How fast does this train have to go (mph) to exceed t

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Question 353635: One train runs 90% of the time and goes 55 mph any time it runs (no acceleration lag time) Another train runs 10% of the time. How fast does this train have to go (mph) to exceed the distance of the other train?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
1st train:
9*55=495 mi in 10 hrs
2nd train would have to travel at greater than 495 mph to exceed the distance of the other train.
.
Ed
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