一道数学题50分.Wewanttomixtworaw-materials(A,B)tomake1000kgofamixturewithgivenchemicalconcentration.MaterialAcontains0%Cuand10%Ni.MaterialBcontains1%Cuand3%Ni.Themixturemustcontainatmost0.5%ofCuandbetwee

　　一道数学题50分.

　　Wewanttomixtworaw-materials(A,B)tomake1000kgofamixturewithgivenchemicalconcentration.MaterialAcontains0%Cuand10%Ni.MaterialBcontains1%Cuand3%Ni.Themixturemustcontainatmost0.5%ofCuandbetween6%and7%ofNi.RawmaterialAcosts10EUR/kgandBcosts12EUR/kg.

　　a)FormulatetheproblemoffindingthecheapestmixtureasanLPproblem.DecisionvariablesxAandxBcorrespondtotheamountofrawmaterialsAandBinthemixture.

　　b)Transformtheproblemintothecanonicalform(equalityconstraints)byaddingslackorsurplusvariables.

　　c)FormtheSimplextableofthecorrespondingproblem.YoucandothiseitherusingpenandpaperorinExcel.

　　给出答案和翻译的都将得到分的，我会在另外一个帖子给分。