某公司某年下半年产品产量与某项混合成本,采用高低点发分解固定成本和变动成本,高点(280,10000),低点(200,5000).我是这么算的,10000=a+280b 5000=a+200b,两式联立,得到,a=-7500,b=62.5.请问各位大侠
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![某公司某年下半年产品产量与某项混合成本,采用高低点发分解固定成本和变动成本,高点(280,10000),低点(200,5000).我是这么算的,10000=a+280b 5000=a+200b,两式联立,得到,a=-7500,b=62.5.请问各位大侠](/uploads/image/z/11401574-14-4.jpg?t=%E6%9F%90%E5%85%AC%E5%8F%B8%E6%9F%90%E5%B9%B4%E4%B8%8B%E5%8D%8A%E5%B9%B4%E4%BA%A7%E5%93%81%E4%BA%A7%E9%87%8F%E4%B8%8E%E6%9F%90%E9%A1%B9%E6%B7%B7%E5%90%88%E6%88%90%E6%9C%AC%2C%E9%87%87%E7%94%A8%E9%AB%98%E4%BD%8E%E7%82%B9%E5%8F%91%E5%88%86%E8%A7%A3%E5%9B%BA%E5%AE%9A%E6%88%90%E6%9C%AC%E5%92%8C%E5%8F%98%E5%8A%A8%E6%88%90%E6%9C%AC%2C%E9%AB%98%E7%82%B9%EF%BC%88280%2C10000%EF%BC%89%2C%E4%BD%8E%E7%82%B9%EF%BC%88200%2C5000%EF%BC%89.%E6%88%91%E6%98%AF%E8%BF%99%E4%B9%88%E7%AE%97%E7%9A%84%2C10000%3Da%2B280b+5000%3Da%2B200b%2C%E4%B8%A4%E5%BC%8F%E8%81%94%E7%AB%8B%2C%E5%BE%97%E5%88%B0%2Ca%3D-7500%2Cb%3D62.5.%E8%AF%B7%E9%97%AE%E5%90%84%E4%BD%8D%E5%A4%A7%E4%BE%A0)
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