马特·朱克瑞结婚了吗?:一道英语数学题,帮忙解答.
来源:百度文库 编辑:高考问答 时间:2024/05/11 00:54:38
The lengths (长度) of two rivers are in the ratio 12:7. The length of the longer one is 42km. Find the length of the shorter one.
两条河长度比为12:7,长的那条的长度是42km,短的河的长度是多少?
42×12/7=72km
42乘7除12
42* 7/12 =24.5
24.5km
24。5