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10. Mining A coal company owns mines in two different loca- tions. Each day, mine I produces 4 tons of anthracite (hard) coal, 4 tons of ordinary coal, and 7 tons of bituminous (soft) coal. Each day, mine 2 produces 10 tons of anthracite, 5 tons of ordinary coal, and Sons of bituminous coal. It costs the company is per day to operate mine land 5.200 per day to operate mine 2. An order is received for 80 tons of anthracite 60 tons of ordinary coal, and 75 tons of bituminous coal. (a) Fill in the following chart: | Mine 1 Ming 2 I Ordered Anthracite Ordinary Bituminous Daily cost (b) Let x be the number of days that mine I should be oper ated and the number of days that line 2 should be operated. Refer to the chart, and give three inequalities that and must alsfy to fill the order (c) Give other requirements that and y must satisfy (d) Find the total cost of operating mine I for days and mine 2 for days (e) Graph the feasible set for the mining problem. 10. Mining A coal company owns mines in two different loca- tions. Each day, mine I produces 4 tons of anthracite (hard) coal, 4 tons of ordinary coal, and 7 tons of bituminous (soft) coal. Each day, mine 2 produces 10 tons of anthracite, 5 tons of ordinary coal, and Sons of bituminous coal. It costs the company is per day to operate mine land 5.200 per day to operate mine 2. An order is received for 80 tons of anthracite 60 tons of ordinary coal, and 75 tons of bituminous coal. (a) Fill in the following chart: | Mine 1 Ming 2 I Ordered Anthracite Ordinary Bituminous Daily cost (b) Let x be the number of days that mine I should be oper ated and the number of days that line 2 should be operated. Refer to the chart, and give three inequalities that and must alsfy to fill the order (c) Give other requirements that and y must satisfy (d) Find the total cost of operating mine I for days and mine 2 for days (e) Graph the feasible set for the mining