幫手解決一條maths丫唔該
The cost price of a piece of toy is $x. If the profit on selling the piece of toy is 30% of the cost price and the selling price is $494, find the value of x.
唔該哂
一條maths
2007-11-17 5:40 am
回答 (5)
2007-11-17 5:45 am
✔ 最佳答案
Profit = 494 - x = 0.3x494 = 1.3x
x = 494/1.3
x = 380
2007-11-17 6:00 am
1.3x=494
x=494/1.3
x=380
x=494/1.3
x=380
收錄日期: 2021-04-13 18:12:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071116000051KK03782