Let a be the mother age
a+(a/2+2)=62
下一步？
更新1:
那我斗膽再問： a+(a-9)+a/3=64
數學問題~~~~~help~~~~
回答 (8)
2006-10-21 8:06 pm
✔ 最佳答案
a + a/2 +2 = 62將條公式每邊*2:
2a+ a + 4 = 62*2
3a = 124-4 = 120
a= 40
2006-10-21 8:22 pm
a+a/2+2=62
a+a/2=60
2a/2+a/2=60
3a/2=60
3a=120
a=40
40+(40/2+2)=62
60+22=62
correct
a+a/2=60
2a/2+a/2=60
3a/2=60
3a=120
a=40
40+(40/2+2)=62
60+22=62
correct
2006-10-21 8:11 pm
a+(a/2+2)=62
a+a/2+2=62
1.5a+2=62
1.5a=60
a=40
a+a/2+2=62
1.5a+2=62
1.5a=60
a=40
2006-10-21 8:10 pm
a+a/2+2=62
2a+a+4=124
3a=120
a=40
mother's age is 40
2a+a+4=124
3a=120
a=40
mother's age is 40
2006-10-21 8:10 pm
?????._. =40
2006-10-21 8:09 pm
a+a/2+2=62
a+a/2=60
3a/2=60
a = 40
???????????????
唔係真係咁 ar... 考試你死梗喎~~~
a+a/2=60
3a/2=60
a = 40
???????????????
唔係真係咁 ar... 考試你死梗喎~~~
2006-10-21 8:06 pm
i don't know
=129
=129
收錄日期: 2021-04-29 21:42:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061021000051KK01677