甲,乙两人练习长跑,若甲让乙先跑10米,则甲跑5秒可追上乙,若乙比甲先跑2秒,则甲跑4秒能追上乙.问,两人每秒各跑多少米?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 13:33:26
![甲,乙两人练习长跑,若甲让乙先跑10米,则甲跑5秒可追上乙,若乙比甲先跑2秒,则甲跑4秒能追上乙.问,两人每秒各跑多少米?](/uploads/image/z/13368978-18-8.jpg?t=%E7%94%B2%2C%E4%B9%99%E4%B8%A4%E4%BA%BA%E7%BB%83%E4%B9%A0%E9%95%BF%E8%B7%91%2C%E8%8B%A5%E7%94%B2%E8%AE%A9%E4%B9%99%E5%85%88%E8%B7%9110%E7%B1%B3%2C%E5%88%99%E7%94%B2%E8%B7%915%E7%A7%92%E5%8F%AF%E8%BF%BD%E4%B8%8A%E4%B9%99%2C%E8%8B%A5%E4%B9%99%E6%AF%94%E7%94%B2%E5%85%88%E8%B7%912%E7%A7%92%2C%E5%88%99%E7%94%B2%E8%B7%914%E7%A7%92%E8%83%BD%E8%BF%BD%E4%B8%8A%E4%B9%99.%E9%97%AE%2C%E4%B8%A4%E4%BA%BA%E6%AF%8F%E7%A7%92%E5%90%84%E8%B7%91%E5%A4%9A%E5%B0%91%E7%B1%B3%3F)
甲,乙两人练习长跑,若甲让乙先跑10米,则甲跑5秒可追上乙,若乙比甲先跑2秒,则甲跑4秒能追上乙.问,两人每秒各跑多少米?
甲,乙两人练习长跑,若甲让乙先跑10米,则甲跑5秒可追上乙,若乙比甲先跑2秒,则甲跑4秒能追上乙.问,两人每秒各跑多少米?
甲,乙两人练习长跑,若甲让乙先跑10米,则甲跑5秒可追上乙,若乙比甲先跑2秒,则甲跑4秒能追上乙.问,两人每秒各跑多少米?
设甲的速度为x,乙的速度为y,列方程组求解.5x-5y=10,(4+2)y=4x,解得x=6.y=4.呵呵希望能帮到你