(數學問題) 求星期六的室温
2011-05-22 7:49 am
回答 (1)
2011-05-22 7:56 am
✔ 最佳答案
設x_i為星期i的室溫x_1 + x_2 +... + x_6 = 150x_6 + x_7 = 56x_1 + ... + x_7 = 182=> x_7 = 32, x_6 = 24星期六的室温是24度
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