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Mathematics, 09.07.2019 02:30 jackchelly
Tony and his brother had to shovel the snow. tony worked 3/5 of an hour. his brother worked 2 1/2times longer. how long did his brother work?
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Mathematics, 21.06.2019 19:40
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
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Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?
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Tony and his brother had to shovel the snow. tony worked 3/5 of an hour. his brother worked 2 1/2tim...
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