初一二元一次方程组应用题 要有过程和思绪1、有甲乙两种债券,年利率分别是10%与12%,现有400债券,一年后获利45元,问两种债券各有多少?2、一种饮料大小包装有3种,1个中瓶比2个小瓶便宜2角,1
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![初一二元一次方程组应用题 要有过程和思绪1、有甲乙两种债券,年利率分别是10%与12%,现有400债券,一年后获利45元,问两种债券各有多少?2、一种饮料大小包装有3种,1个中瓶比2个小瓶便宜2角,1](/uploads/image/z/764184-48-4.jpg?t=%E5%88%9D%E4%B8%80%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84%E5%BA%94%E7%94%A8%E9%A2%98+%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B%E5%92%8C%E6%80%9D%E7%BB%AA1%E3%80%81%E6%9C%89%E7%94%B2%E4%B9%99%E4%B8%A4%E7%A7%8D%E5%80%BA%E5%88%B8%2C%E5%B9%B4%E5%88%A9%E7%8E%87%E5%88%86%E5%88%AB%E6%98%AF10%25%E4%B8%8E12%25%2C%E7%8E%B0%E6%9C%89400%E5%80%BA%E5%88%B8%2C%E4%B8%80%E5%B9%B4%E5%90%8E%E8%8E%B7%E5%88%A945%E5%85%83%2C%E9%97%AE%E4%B8%A4%E7%A7%8D%E5%80%BA%E5%88%B8%E5%90%84%E6%9C%89%E5%A4%9A%E5%B0%91%3F2%E3%80%81%E4%B8%80%E7%A7%8D%E9%A5%AE%E6%96%99%E5%A4%A7%E5%B0%8F%E5%8C%85%E8%A3%85%E6%9C%893%E7%A7%8D%2C1%E4%B8%AA%E4%B8%AD%E7%93%B6%E6%AF%942%E4%B8%AA%E5%B0%8F%E7%93%B6%E4%BE%BF%E5%AE%9C2%E8%A7%92%2C1)
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