Brett takes two bus rides in order to get to work. the second bus ride is 3 times as many miles as the first bus. together the two buses travel 85 miles. how long is each bus ride?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол