formulate the rations using methods for stimultaneous nutrient balancing in Russian formulations

please help i have finals next week!

3. Formulate a ration for mature beef cows consuming 5 lbs of alfalfa hay (13.0% CP: 50% TDN) per day. Determine the mixture of corn silage (8.1% CP: 70% TDN) and cottonseed meal (44.3% CP: 78% TDN) the beef cattle will require to meet crude protein and metabolizable energy requirements in addition to the hay. The beef cow needs 1.14 kg of CP and 6.27 kg TDN. 4. Formulate a swine ration for a 27.3 kg pig that needs 0.272 kg of CP and 5390 kcal of ME per day using corn (9.0% CP: 3275 kcal/kg ME) and soybean meal (46.0% CP: 2825 kcal/kg ME). 3. Formulate a ration for mature beef cows consuming 5 lbs of alfalfa hay (13.0% CP: 50% TDN) per day. Determine the mixture of corn silage (8.1% CP: 70% TDN) and cottonseed meal (44.3% CP: 78% TDN) the beef cattle will require to meet crude protein and metabolizable energy requirements in addition to the hay. The beef cow needs 1.14 kg of CP and 6.27 kg TDN. 4. Formulate a swine ration for a 27.3 kg pig that needs 0.272 kg of CP and 5390 kcal of ME per day using corn (9.0% CP: 3275 kcal/kg ME) and soybean meal (46.0% CP: 2825 kcal/kg ME)