Mathematics, 08.09.2020 01:01 queenkimm26
Kira purchase a prepaid phone card for $20. Long distance calls cost 22 cents a minute using this card. Kira used her card only once to make a long-distance call. If the remaining credit on her card is $12.96, how many minutes did her call last?
Answers: 1
Mathematics, 21.06.2019 17:20, kolbehoneyman
Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem
Answers: 3
Mathematics, 22.06.2019 00:00, evazquez
Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?
Answers: 2
Mathematics, 22.06.2019 00:10, angelteddy033
Use your knowledge of the binary number system to write each binary number as a decimal number. a) 1001 base 2= base 10 b) 1101 base 2 = base 10
Answers: 1
Kira purchase a prepaid phone card for $20. Long distance calls cost 22 cents a minute using this ca...
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