设有A,B,C,D四个未知数,有以下等式:3.5A + 4.4B + 5.0C+ 5.5D = 4.62A+B+C+D=100求 当1.6A + 1.2B + 0.9C + 0.8D 为最大值时 A,B,C,D的值为多少?A+B+C+D=1 A,B,C,D,均大于等于0.我已经在工作了。可以理解为办会员卡,
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![设有A,B,C,D四个未知数,有以下等式:3.5A + 4.4B + 5.0C+ 5.5D = 4.62A+B+C+D=100求 当1.6A + 1.2B + 0.9C + 0.8D 为最大值时 A,B,C,D的值为多少?A+B+C+D=1 A,B,C,D,均大于等于0.我已经在工作了。可以理解为办会员卡,](/uploads/image/z/752888-56-8.jpg?t=%E8%AE%BE%E6%9C%89A%2CB%2CC%2CD%E5%9B%9B%E4%B8%AA%E6%9C%AA%E7%9F%A5%E6%95%B0%2C%E6%9C%89%E4%BB%A5%E4%B8%8B%E7%AD%89%E5%BC%8F%EF%BC%9A3.5A+%2B+4.4B+%2B+5.0C%2B+5.5D+%3D+4.62A%2BB%2BC%2BD%3D100%E6%B1%82+%E5%BD%931.6A+%2B+1.2B+%2B+0.9C+%2B+0.8D+%E4%B8%BA%E6%9C%80%E5%A4%A7%E5%80%BC%E6%97%B6+A%2CB%2CC%2CD%E7%9A%84%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91%3FA%2BB%2BC%2BD%3D1+A%2CB%2CC%2CD%2C%E5%9D%87%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E0.%E6%88%91%E5%B7%B2%E7%BB%8F%E5%9C%A8%E5%B7%A5%E4%BD%9C%E4%BA%86%E3%80%82%E5%8F%AF%E4%BB%A5%E7%90%86%E8%A7%A3%E4%B8%BA%E5%8A%9E%E4%BC%9A%E5%91%98%E5%8D%A1%EF%BC%8C)
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