maths problems.在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降到5月分的12600元/m²在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降

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maths problems.在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降到5月分的12600元/m²在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降
maths problems.

在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降到5月分的12600元/m²

在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降到5月分的12600元/m²

(1)                                              问4、5两月平均每月降的百分率是多少?(参考数据:根号0.9≈0.95)

(2)如果房价继续回落,按此降价的百分率,你预测到7月份该城市的商品房成交均价是否会跌破10000元/m²?请说明理由.

maths problems.在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降到5月分的12600元/m²在国家下身的宏观调控下,某市的商品房成交价由今年3月分的14000元/m²下降
设为x
则14000(1-x)²=12600
(1-x)²=0.9
1-x=±0.95
x

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