来自任开银的问题
therearetwokindsofsweetwaterAandB.acontains270gramsofsugarand30gramswater.Bcontains400gramsofsugarand100gramsofwater.nowiwanttoget100gramssweetwaterwhichis82.5%concentrated.whatistheweightofAandBresp
therearetwokindsofsweetwaterAandB.acontains270gramsofsugarand30gramswater.Bcontains400gramsofsugarand100gramsofwater.nowiwanttoget100gramssweetwaterwhichis82.5%concentrated.whatistheweightofAandBrespectivelydoweneed?
3回答
2020-12-27 09:19