一只小船从甲港到乙港逆流航行需2小时,水流速度增加一倍后,船从甲港到乙港航行需3小时,水流速度增加后,从乙港返回甲港需航行几小时?(顺水速度=船速+水速;逆水速度=船速-水速).
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 15:28:42
![一只小船从甲港到乙港逆流航行需2小时,水流速度增加一倍后,船从甲港到乙港航行需3小时,水流速度增加后,从乙港返回甲港需航行几小时?(顺水速度=船速+水速;逆水速度=船速-水速).](/uploads/image/z/15211944-0-4.jpg?t=%E4%B8%80%E5%8F%AA%E5%B0%8F%E8%88%B9%E4%BB%8E%E7%94%B2%E6%B8%AF%E5%88%B0%E4%B9%99%E6%B8%AF%E9%80%86%E6%B5%81%E8%88%AA%E8%A1%8C%E9%9C%802%E5%B0%8F%E6%97%B6%2C%E6%B0%B4%E6%B5%81%E9%80%9F%E5%BA%A6%E5%A2%9E%E5%8A%A0%E4%B8%80%E5%80%8D%E5%90%8E%2C%E8%88%B9%E4%BB%8E%E7%94%B2%E6%B8%AF%E5%88%B0%E4%B9%99%E6%B8%AF%E8%88%AA%E8%A1%8C%E9%9C%803%E5%B0%8F%E6%97%B6%2C%E6%B0%B4%E6%B5%81%E9%80%9F%E5%BA%A6%E5%A2%9E%E5%8A%A0%E5%90%8E%2C%E4%BB%8E%E4%B9%99%E6%B8%AF%E8%BF%94%E5%9B%9E%E7%94%B2%E6%B8%AF%E9%9C%80%E8%88%AA%E8%A1%8C%E5%87%A0%E5%B0%8F%E6%97%B6%3F%EF%BC%88%E9%A1%BA%E6%B0%B4%E9%80%9F%E5%BA%A6%3D%E8%88%B9%E9%80%9F%2B%E6%B0%B4%E9%80%9F%EF%BC%9B%E9%80%86%E6%B0%B4%E9%80%9F%E5%BA%A6%3D%E8%88%B9%E9%80%9F-%E6%B0%B4%E9%80%9F%EF%BC%89.)
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