一辆车从甲地到乙地,行至全程的80%处是座大桥;从乙地返回甲地,行至全程的三分之二处就超过了这座大桥21没写完的:千米.甲乙两地相距多少千米?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 22:33:59
![一辆车从甲地到乙地,行至全程的80%处是座大桥;从乙地返回甲地,行至全程的三分之二处就超过了这座大桥21没写完的:千米.甲乙两地相距多少千米?](/uploads/image/z/12473823-39-3.jpg?t=%E4%B8%80%E8%BE%86%E8%BD%A6%E4%BB%8E%E7%94%B2%E5%9C%B0%E5%88%B0%E4%B9%99%E5%9C%B0%2C%E8%A1%8C%E8%87%B3%E5%85%A8%E7%A8%8B%E7%9A%8480%25%E5%A4%84%E6%98%AF%E5%BA%A7%E5%A4%A7%E6%A1%A5%EF%BC%9B%E4%BB%8E%E4%B9%99%E5%9C%B0%E8%BF%94%E5%9B%9E%E7%94%B2%E5%9C%B0%2C%E8%A1%8C%E8%87%B3%E5%85%A8%E7%A8%8B%E7%9A%84%E4%B8%89%E5%88%86%E4%B9%8B%E4%BA%8C%E5%A4%84%E5%B0%B1%E8%B6%85%E8%BF%87%E4%BA%86%E8%BF%99%E5%BA%A7%E5%A4%A7%E6%A1%A521%E6%B2%A1%E5%86%99%E5%AE%8C%E7%9A%84%EF%BC%9A%E5%8D%83%E7%B1%B3.%E7%94%B2%E4%B9%99%E4%B8%A4%E5%9C%B0%E7%9B%B8%E8%B7%9D%E5%A4%9A%E5%B0%91%E5%8D%83%E7%B1%B3%3F)
一辆车从甲地到乙地,行至全程的80%处是座大桥;从乙地返回甲地,行至全程的三分之二处就超过了这座大桥21没写完的:千米.甲乙两地相距多少千米?
一辆车从甲地到乙地,行至全程的80%处是座大桥;从乙地返回甲地,行至全程的三分之二处就超过了这座大桥21
没写完的:千米.甲乙两地相距多少千米?
一辆车从甲地到乙地,行至全程的80%处是座大桥;从乙地返回甲地,行至全程的三分之二处就超过了这座大桥21没写完的:千米.甲乙两地相距多少千米?
s*2/3=21+s*(1-80%)
*代表乘号