How to do?
更新1:
The total value of Sandy ' coins is $528. sorry!打錯
Form 1 math
2010-11-17 3:38 am
Sandy has three types of coins: $2 coins, $5 coins and $10 coins.The number of $2 coins is twice that of $5 coins. The number of $5 coins is 8 more than that of $10 coins. The total value of Sandy ' coins is $523. How many coins does Sandy have altogether?
How to do?
How to do?
回答 (2)
2010-11-17 3:51 am
題目出錯~~~~~~~~
2010-11-17 3:48 am
5x+5x*3x=100
$10 coins=29
$5 coins=37
$2 coins=74
$10 coins=29
$5 coins=37
$2 coins=74
收錄日期: 2021-04-23 20:44:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101116000051KK01093