以上問題需以方程式作答- -"
更新1:
5x-2x=140+85
F1 英文數學式
2010-10-24 7:32 pm
The Community Youth Club decides to buy somewarm packs, each of which will be given to an elder person in an elderly care centre.If 2 boxes of warm packs are purchased, thereis a shortage of 85 warm packs.If 5 boxes are purchased,140 warm packs wii be left. How many warm packs are there in each box?
以上問題需以方程式作答- -"
以上問題需以方程式作答- -"
回答 (2)
2010-10-24 8:41 pm
✔ 最佳答案
let Y be the warm packs in each box2Y + 85 = 5Y - 140
85 + 140 = 5Y - 2Y
225 = 3Y
Y = 75
2010-10-24 9:09 pm
let Y be the warm packs in each box
2Y + 85 = 5Y - 140
85 + 140 = 5Y - 2Y
225 = 3Y
Y = 75
hope can help u
2Y + 85 = 5Y - 140
85 + 140 = 5Y - 2Y
225 = 3Y
Y = 75
hope can help u
收錄日期: 2021-04-23 23:18:43
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https://hk.answers.yahoo.com/question/index?qid=20101024000051KK00413