Martin decided to buy 2 bags of grapes wei
ds each, instead of the 3 bags weighing inds each,
because the bigger bags were on sale. did he end up with more grapes or less grapes by buying the bigger bags?
he ended up with about
pound less grapes.
he ended up with about
pound more grapes.
he ended up with about 1 pound less grapes.
he ended up with about 1 pound more grapes.

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

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

How do you solving the solution of each system using elimination?