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When 9 gallons of a solution that is 30 percent alcohol are mixed with 18 gallons of a solution that is x percent alcohol, the resulting mixture is 25 percent alcohol. Which of the following is closest to the value of x?
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· 相关考点
2.5.4 溶液与浓度问题
2.5.4 溶液与浓度问题
以上解析由 考满分老师提供。
