Solve the system of equations by elimination. (-x-5y5z = 2 4x - 5y + 4z =...

    

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Solve the system of equations by elimination. (-x-5y5z = 2 4x - 5y + 4z = 19 x + 5y-z = -20 A manufacturer of office chairs makes three models: Utility, Secretarial, and Manager. Three materials common to the manufacturing process for all of the models are cloth, steel, and plastic. The amounts required for one chair in each category are specified in the following table. The company wants to use up its inventory of these materials because of upcoming design changes. How many of each model should the manufacturer build to deplete its current inventory consisting of 415 units of cloth, 665 units of steel, and 805 units of plastic? Utility Secretarial 5 Cloth 2 Steel 3 Plastic 5 10 10 5 5 Manager 1 9 1 Use the substitution method to find all solutions of the system. 8x - y = 13 -4x + 5y = 7 Find all solutions of the system. 2x + 7z = -1 7y 5z = 4 5z = 10 Solve the system of equations by elimination. (-x-5y5z = 2 4x - 5y + 4z = 19 x + 5y-z = -20 A manufacturer of office chairs makes three models: Utility, Secretarial, and Manager. Three materials common to the manufacturing process for all of the models are cloth, steel, and plastic. The amounts required for one chair in each category are specified in the following table. The company wants to use up its inventory of these materials because of upcoming design changes. How many of each model should the manufacturer build to deplete its current inventory consisting of 415 units of cloth, 665 units of steel, and 805 units of plastic? Utility Secretarial 5 Cloth 2 Steel 3 Plastic 5 10 10 5 5 Manager 1 9 1 Use the substitution method to find all solutions of the system. 8x - y = 13 -4x + 5y = 7 Find all solutions of the system. 2x + 7z = -1 7y 5z = 4 5z = 10