Icould really use an easy answer, i can't find any i understand. i need to use a linear system of equations to answer. the school that kevin goes to is selling tickets to a field trip. on the first day of ticket sales, the school sold 3 adult tickets and 1 child ticket for a total of $38. the school took in $52 on the second day by selling 3 adult tickets and 2 child tickets. find the price of an adult ticket and the price of a child ticket.

How do you determine if an ordered pair is a solution to a given equation?

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: