唔該比埋方程步驟呀!!
1.智光原有遊戲卡17張而慧文有29張.當智光和慧文分別購買4包和2包遊戲卡後.他們遊戲卡數量相同.每包遊戲卡有多少張?
2.永基 小柔和雯雯三人買了一份價值$284的禮物送給爸爸,其中永基支沒付的款項是雯雯的5倍,而小柔支付的款項是雯雯的2倍.求雯雯支付的款項.
中一代數方程
2011-10-17 3:55 am
回答 (3)
2011-10-17 5:31 am
✔ 最佳答案
1.17+4a=29+2a17-29=2a-4a
-12=-2a
2a=12
a=6
2.284=5a+2a+a
284=8a
35.5=a
2011-10-17 6:37 am
因為學校用英文教,我唔清楚點用中文,
,但格式應該差唔多:)
1. Let x be number of cards in each pack.
17+4 = 29+2x
4x-2x = 29-17
2x = 12
x = 6
There are 6 cards in each pack.
2. Let $x be the value that 雯雯 has paid.
5x+x+2x = 284
8x = 284
x = 35.5
雯雯 has paid $35.5
,但格式應該差唔多:)
1. Let x be number of cards in each pack.
17+4 = 29+2x
4x-2x = 29-17
2x = 12
x = 6
There are 6 cards in each pack.
2. Let $x be the value that 雯雯 has paid.
5x+x+2x = 284
8x = 284
x = 35.5
雯雯 has paid $35.5
參考: 自己
2011-10-17 4:26 am
1.ask teacher
2.ask teacher
2.ask teacher
收錄日期: 2021-04-13 18:18:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111016000051KK01029