What is 5 1/3 * (-4 4/5 ) a -25 3/5 b-20 4/15 c 20 4/15 d 25 3/5

7x+8y=-18, 4x-9y=-3 solve the system of equations

What is the value of x in the diagram below?

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