math 一問

2008-12-29 1:10 am
3 times of a number is greater than its half by 25. Find the number.

回答 (2)

2008-12-29 1:39 am
✔ 最佳答案
Let the number is x
3x=(x/2)+25
6x=x+50
5x=50
x=10
The number is 10

2008-12-28 17:39:44 補充:
上面個位解錯題
2008-12-29 1:26 am
Let the number be x

3x > 25/2
x > 25/2/3
x > 4.17

So,the number is greater than4.17
參考: me


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