一定要有步驟!!!!!!!!!!!!!
maths !!!!
1. If x:z=5:2 and y:z=4:9,find x:y.
2. If x:z=7:2 and y:x=3:5,find y:z.
要有步驟!!!!!!!!!!!!!
收錄日期: 2021-04-13 00:55:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070422000051KK02442