Mathematics, 18.07.2019 14:00 aprilayleen
Jenya has 12 bills in her wallet. she has a total of $82. if she has twice as many $5 bill as $1 bills, and two more $10 bills than $5 bills, how many of each does she have?
Answers: 1
Mathematics, 21.06.2019 17:20
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, 21.06.2019 18:00
The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers
Answers: 2
Mathematics, 21.06.2019 19:30
Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?
Answers: 1
Jenya has 12 bills in her wallet. she has a total of $82. if she has twice as many $5 bill as $1 bil...
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