列式
the total age of Hebrew and his son is 51.3 years ago,Hebrew is 8 times as old as his son. find the current age of Hebrew s son.
Let y be the current age of Hebrew s son.
中一math
2010-11-09 4:26 am
回答 (2)
2010-11-09 4:29 am
✔ 最佳答案
the total age of Hebrew and his son is 51.3 years ago,Hebrew is 8 times as old as his son. find the current age of Hebrew s son.Let y be the current age of Hebrew s son.
i.e. Hebrew's current age = 51 - y
(51-y)-3 = 8(y-3)
48 - y = 8y - 24
9y = 72
y = 8
Hence, his son's age = 8
參考: Hope the solution can help you^^”
2010-11-10 5:41 am
Let y be the current age of Hebrew's son.
(y-3)*8 = (51-y-3)
8y-24 = 48-y
8y+y = 48+24
9y = 72
y = 72/9
y = 8
therefore, the current age of Hebrew's son is 8 years old.
(y-3)*8 = (51-y-3)
8y-24 = 48-y
8y+y = 48+24
9y = 72
y = 72/9
y = 8
therefore, the current age of Hebrew's son is 8 years old.
收錄日期: 2021-04-23 23:16:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101108000051KK01357