瓶里装有浓度为15%的酒精100克.现又分别倒入100克和400克的A、B两种酒精,瓶里的酒精浓度变为14%,已知A种酒精的浓度是B种酒精浓度的2倍,求A种酒精的浓度是多少?一容器内有浓度为15%的盐水,若
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![瓶里装有浓度为15%的酒精100克.现又分别倒入100克和400克的A、B两种酒精,瓶里的酒精浓度变为14%,已知A种酒精的浓度是B种酒精浓度的2倍,求A种酒精的浓度是多少?一容器内有浓度为15%的盐水,若](/uploads/image/z/1161488-56-8.jpg?t=%E7%93%B6%E9%87%8C%E8%A3%85%E6%9C%89%E6%B5%93%E5%BA%A6%E4%B8%BA15%25%E7%9A%84%E9%85%92%E7%B2%BE100%E5%85%8B.%E7%8E%B0%E5%8F%88%E5%88%86%E5%88%AB%E5%80%92%E5%85%A5100%E5%85%8B%E5%92%8C400%E5%85%8B%E7%9A%84A%E3%80%81B%E4%B8%A4%E7%A7%8D%E9%85%92%E7%B2%BE%2C%E7%93%B6%E9%87%8C%E7%9A%84%E9%85%92%E7%B2%BE%E6%B5%93%E5%BA%A6%E5%8F%98%E4%B8%BA14%25%2C%E5%B7%B2%E7%9F%A5A%E7%A7%8D%E9%85%92%E7%B2%BE%E7%9A%84%E6%B5%93%E5%BA%A6%E6%98%AFB%E7%A7%8D%E9%85%92%E7%B2%BE%E6%B5%93%E5%BA%A6%E7%9A%842%E5%80%8D%2C%E6%B1%82A%E7%A7%8D%E9%85%92%E7%B2%BE%E7%9A%84%E6%B5%93%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E4%B8%80%E5%AE%B9%E5%99%A8%E5%86%85%E6%9C%89%E6%B5%93%E5%BA%A6%E4%B8%BA15%25%E7%9A%84%E7%9B%90%E6%B0%B4%2C%E8%8B%A5)
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