如图,已知正方形的边长为4,甲、乙两动点分别从正方形ABCD的顶点A、C同时沿正方形的边开始移动,甲点依顺时针方向环行,乙点依逆时针方向环行,若乙的速度是甲的速度的3倍,则它们第2018次相遇在边______ .
![](https://img.xkw.com/dksih/QBM/2021/1/20/2640180292984832/2645149355556864/STEM/4e10787e91774d67b950bc67241607cf.png?resizew=160)
20-21七年级上·重庆北碚·期末 查看更多[3]
重庆市北碚、合川、璧山、沙坪坝四区2020-2021学年七年级上学期期末考试数学试题(已下线)专题3.04 填空题满分强化(30题)-2022-2023学年七年级数学上学期期末复习必过知识点及技巧提升(人教版)辽宁省抚顺市新宾满族自治县2021-2022学年七年级上学期期末数学试题
更新时间:2021-01-27 14:33:03
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【知识点】 行程问题(一元一次方程的应用)解读
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【推荐1】如图,等边
的边长为
,
、
两点分别从
、
两点同时出发﹐点
以
的速度按顺时针方向在等边
的边上运动,点
以
的速度按逆时针方向在等边
的边上运动,则
、
两点第一次在等边
顶点处相遇的时间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af85f70c56bca4004d6db49644c1371a.png)
_____ 秒,第四次在等边
顶点处相遇的时间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8248e000e55c26cde5a878c3c3db371.png)
_____ 秒.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e071f8be0a62efe626b28e3d07dc39da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af85f70c56bca4004d6db49644c1371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8248e000e55c26cde5a878c3c3db371.png)
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【推荐2】某客运站行车时刻表如图,若全程保持匀速行驶,则当快车出发______ 小时后,两车相距25km.
哈尔滨—长春 | 出发时间 | 到站时间 | 里程(km) |
普通车 | 7:00 | 11:00 | 300 |
快车 | 7:30 | 10:30 | 300 |
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