Mathematics, 30.11.2019 16:31, hpugh2019
Every 15 minutes an express train arrives and waits 4 minutes to pick up passengers. four minutes after the express train leaves, a local train arrives and waits 3 minutes to pick up passengers. if a passenger arrives at the station at a random time during the rush period, find the probability of each of the following.
1. the express train will be waiting at the station.
2. no train will be waiting at the station.
i think that the probability is out of 15, but i have other people telling me it's out of 26. which is right?
Answers: 1
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Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
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Every 15 minutes an express train arrives and waits 4 minutes to pick up passengers. four minutes af...
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