Ned weighs 1.5 times as much as jill and tom weighs 15 kilograms more than jill. if their combined weight is 190 kilograms, how much does each person weigh?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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

In the geometric progression –3, 12, −48… what term is 3,072?