An 18-wheeler has to cross a weigh station on its route and it can weigh a maximum of 65,000 pounds. The cab and trailer weigh 32,000 without any cargo. The truck will be loaded with identical pallets that contain 1,600 pounds of materials. What is the maximum number of pallets that can be loaded on the trailer without the 18-wheeler being over the weight limit?

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