现对某商品降价20%促销,为了使销售总金额保持不变,销售量要比按原价销售时增加百分之几?列一元一次方程
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![现对某商品降价20%促销,为了使销售总金额保持不变,销售量要比按原价销售时增加百分之几?列一元一次方程](/uploads/image/z/136233-9-3.jpg?t=%E7%8E%B0%E5%AF%B9%E6%9F%90%E5%95%86%E5%93%81%E9%99%8D%E4%BB%B720%25%E4%BF%83%E9%94%80%2C%E4%B8%BA%E4%BA%86%E4%BD%BF%E9%94%80%E5%94%AE%E6%80%BB%E9%87%91%E9%A2%9D%E4%BF%9D%E6%8C%81%E4%B8%8D%E5%8F%98%2C%E9%94%80%E5%94%AE%E9%87%8F%E8%A6%81%E6%AF%94%E6%8C%89%E5%8E%9F%E4%BB%B7%E9%94%80%E5%94%AE%E6%97%B6%E5%A2%9E%E5%8A%A0%E7%99%BE%E5%88%86%E4%B9%8B%E5%87%A0%3F%E5%88%97%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B)
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现对某商品降价20%促销,为了使销售总金额保持不变,销售量要比按原价销售时增加百分之几?列一元一次方程
现对某商品降价20%促销,为了使销售总金额保持不变,销售量要比按原价销售时增加百分之几?
列一元一次方程
现对某商品降价20%促销,为了使销售总金额保持不变,销售量要比按原价销售时增加百分之几?列一元一次方程
设销售量要比按原价销售时增加x.
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%.
设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。
设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。赞同90|评论(74)
设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。
设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。
设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
...
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设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。
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满意回答
2011-11-20 11:49设销售量要比按原价销售时增加x。
(1 - 20%)(1 + x) = 1
80% + 80%x = 1
80%x = 1 - 80%
80%x = 20%
x = 20% ÷ 80%
x = 25%
答:销售量要比按原价销售时增加25%。