statistics show that a certain university, 90% of the students who live on campus during a given Semester will remain on campus the following semester, and 70% of students living off campus during a given semester will remain off campus the following semester. Let X and Y denote The number of students who live on and off campus this semester and let u and v be the corresponding numbers for the next semester. Then the following system of equations can be formed. Complete parts a through C. (a) Write the system of equations in matrix form. (b)Solve the resulting matrix equation for X=[x y] (c) suppose that, out of a group of 21,000 students, 12000 currently live on campus and 9000 live off campus. how many lived on campus last semester? how many will live off campus next semester?

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