一个数学应用题(英文的)(求解)One type of antifreeze is 40% glycol,and another type of antifreeze is 60% glycol.How much of each kind should be used to make 100gallons of antifreeze that is 48% glycol?最好是用方程式去解求列式答

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一个数学应用题(英文的)(求解)One type of antifreeze is 40% glycol,and another type of antifreeze is 60% glycol.How much of each kind should be used to make 100gallons of antifreeze that is 48% glycol?最好是用方程式去解求列式答
一个数学应用题(英文的)(求解)
One type of antifreeze is 40% glycol,and another type of antifreeze is 60% glycol.How much of each kind should be used to make 100gallons of antifreeze that is 48% glycol?
最好是用方程式去解
求列式
答案打不打都可以

一个数学应用题(英文的)(求解)One type of antifreeze is 40% glycol,and another type of antifreeze is 60% glycol.How much of each kind should be used to make 100gallons of antifreeze that is 48% glycol?最好是用方程式去解求列式答
有一种防冻剂含40%乙二醇,另一种含60%,问配制100加仑浓度为48%的防冻剂需这两种防冻剂各多少?
设第二种防冻剂的量为x加仑,则另一种为(100-x)加仑
依题意得:40%(100-x)+60%x=100*48%
解得:x=40
则100-x=100-40=60(加仑)
答:第一种需60加仑,第二种需40加仑.

有防冻剂40%是乙二醇的,另一种防冻剂60%是乙二醇.配置成48%是乙二醇的比是多少?
设有防冻剂40%是乙二醇的有X千克,另一种防冻剂60%是乙二醇有Y千克;
40%X+60%Y=48%X+48%Y
12%Y=8%X
Y:X=2:3
那么两个的比是2:3。

一种类型的防冻液是40 %乙二醇,和另一种类型的防冻液是乙二醇的60 % 。多少应该是一种用于生产抗冻百加仑是48 %的乙二醇?