2200 lb_m of a finely ground mixture of salt and sand is to be separated by using a two-part process. First, 1500 lb_m of water is added to the salt/sand mixture to dissolve the salt. The insoluble sand may be separated from the saline solution at this point. Next, the saline solution is distilled thereby separating 1350 lb_m of pure water from a brine solution that is 92% salt and 8.0% water. Construct a properly labeled figure depicting the system boundary, inputs and outputs, and unknown quantities; Write the conservation of mass equations required to solve for the percentage of salt and the percentage of sand in the original mixture. The equations should be written in matrix form suitable for solution in MATLAB; Solve for the percentage of salt and the percentage of sand in the original mixture using a method of your choice.