Section 4.6 Model and solve systems of linear equations using matrix inverse methods Solve the following application using matrix inverse methods. An international mining company has two mines in Voisey's Bay and Hawk Ridge. The composition of the ore from each field is given in the table. Mine Voisey's Bay Hawk Ridge Nickel (%) 2 3 Nickel Copper How many tons of ore from each mine should be used to obtain each order of nickel and copper in the table below: Copper (%) 4 2 Order 1 6 tons 8 tons Order 2 8 tons 4 tons

Solve the given system using the inverse of the coefficient matrix. 2x + y = -1 7x + 4y = 2 X =

Use an inverse matrix to solve each system of linear equations. (a) x1 + 2x2 + X3 = X1 + 2x2 - X3 X1 – 2x2 + X3 = -2 4 %D (X1, X2, X3) = (b) x1 + 2x2 + X3 1 X1 + 2x2 – x3 X1 - 2x2 + X3 1 = -3 (X1, X2, X3) =

Use a matrix equation to solve the system of linear equations.       x+2y = 4  4x+10y = 11       What is the inverse​ matrix?     A.   A−1=enter your response here ​(Type an integer or simplified fraction for each matrix​ element.)   B. The inverse matrix does not exist.