Z:(Z+3)=5:6
回答 (3)
2007-02-10 3:51 am
✔ 最佳答案
Z:(Z+3)=5:6 6Z=5*(Z+3)....... <內項相乘等於外項相乘>
6Z=5Z+15......... <拆括號>
6Z-5Z=15............<移項>
Z=15
2007-02-10 2:02 am
Z:(Z+3)=5:6
6z = 5(z+3)
6z = 5z+15
z = 15
6z = 5(z+3)
6z = 5z+15
z = 15
2007-02-10 2:02 am
其實我唔識嫁..不過我試下啦..
Z:(Z+3)=5:6
Z=5,(Z+3)=6
=5:6-3
=5:3
z=3
Z:(Z+3)=5:6
Z=5,(Z+3)=6
=5:6-3
=5:3
z=3
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070209000051KK02391