Two hundred eighty-eight chairs were arranged in 16 equalrows. How many chairs were in each row? Write an equation and solvethe problem.

Math 1051, FINAL EXAM FALL 10 Show all your work. 1) If it costs Microsoft $4500 to manufacture 8 Xbox 360s and 8900 to manufacture 16, obtain the corresponding linear cost function. What was the cost to manufacture each additional Xbox Use the cost function to estimate the cost of manufacturing 50 Xboxes 2) Use Gauss-Jordan row reduction to solve the following system of equations: 3x 4y 2z 1 3x 2y 4z 3 2x 3y 3z 2 3) Use matrix inversion to solve the following system of equation: x 2y 4 y z 0 x 3y 2z 5 4) Use the graphical method to solve the following LP problem: Minimize and Maximize p 2x y x y 2 x y 2 x y 2