A system composed of two industries, coal and steel, has the following input requirements. (a) To produce $1.00 worth of output, the coal industry requires $0.10 of its own product and $0.80 of steel. (b) To produce $1.00 worth of output, the steel industry requires $0.20 of its own product and $0.40 of coal. STEP 1: Find D, the input-output matrix for this system, Steel STEP 2: Solve for the output matrix X in the equation X=DX+E, where E is the external demand matrix E=[10,00020,000]. x=[CoalSteel