您的位置: 首页  >  作业答案  >  其他  >  The distance between city A and city B is 100 km.A car travels from city A to city B at a constant speed of x km/h and returns at a constant speed of y km/h,Express the time taken for the whole journey in x and y.time taken=distance tracelled/speed

The distance between city A and city B is 100 km.A car travels from city A to city B at a constant speed of x km/h and returns at a constant speed of y km/h,Express the time taken for the whole journey in x and y.time taken=distance tracelled/speed

分类: 作业答案 • 2022-06-10 10:21:50
问题描述：

The distance between city A and city B is 100 km.A car travels from city A to city B at a constant speed of x km/h and returns at a constant speed of y km/h,Express the time taken for the whole journey in x and y.
time taken=distance tracelled/speed

答

100/x+100/y

答

100/x+100/y
100是路程、x y 分别为去、回的速度、
路程/速度=时间

相关推荐