An amount of 40% acid solution is to be mixed with enough 10% acid solution to make 25%acid solution.If there are to be 20 litres of the final mixture,how much of each solution should be mixed together?谷歌翻译:40%的溶液量要足够的10%
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![An amount of 40% acid solution is to be mixed with enough 10% acid solution to make 25%acid solution.If there are to be 20 litres of the final mixture,how much of each solution should be mixed together?谷歌翻译:40%的溶液量要足够的10%](/uploads/image/z/10314684-36-4.jpg?t=An+amount+of+40%25+acid+solution+is+to+be+mixed+with+enough+10%25+acid+solution+to+make+25%25acid+solution.If+there+are+to+be+20+litres+of+the+final+mixture%2Chow+much+of+each+solution+should+be+mixed+together%3F%E8%B0%B7%E6%AD%8C%E7%BF%BB%E8%AF%91%3A40%EF%BC%85%E7%9A%84%E6%BA%B6%E6%B6%B2%E9%87%8F%E8%A6%81%E8%B6%B3%E5%A4%9F%E7%9A%8410%EF%BC%85)
An amount of 40% acid solution is to be mixed with enough 10% acid solution to make 25%acid solution.If there are to be 20 litres of the final mixture,how much of each solution should be mixed together?谷歌翻译:40%的溶液量要足够的10%
An amount of 40% acid solution is to be mixed with enough 10% acid solution to make 25%acid solution.If there are to be 20 litres of the final mixture,how much of each solution should be mixed together?
谷歌翻译:40%的溶液量要足够的10%溶液,使25%的溶液混合.如果有要20公升的最终混合物,每个解决方案如何shouldbe多混在一起?
An amount of 40% acid solution is to be mixed with enough 10% acid solution to make 25%acid solution.If there are to be 20 litres of the final mixture,how much of each solution should be mixed together?谷歌翻译:40%的溶液量要足够的10%
设40%的溶液为X
10%的溶液为Y
水 为 (20-X-Y)
满足关系4X+Y=50
以上单位都为L
40%=10L
10%=10L
混合=20L,25%
设40%的溶液量为x公升。
x40%+(20-x)10%=20*25%
x=10
答:40%的溶液量为10公升。
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