Atrain broke down and the passengers had to leave the train and take buses to continue their journey.
when the first bus came, ¼ of the passengers tried to board, but 4 of them were not able to get on.
when the second bus came, ½ of the remaining passengers tried to board, but 6 of them were not able to get on.
when the third bus came, ¾ of the remaining passengers boarded.
there were still 8 passengers left stranded. how many passengers were on the train?

Which statements regarding the diagram are true? check all that apply.

Solve the system of equations. y= 2x y= x^2 - 15

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?