Maths summer asignment

2014-08-03 10:17 pm
Last year, the marked price and the selling price of a new digital camera were $7200 and $6120 resoectively. But this year the marked price and the selling price are adjusted to $6400 and $5600 respectively. In comparing the discount per cent of these two years, which one is greater?

回答 (2)

2014-08-04 8:10 am
✔ 最佳答案

圖片參考:https://s.yimg.com/lo/api/res/1.2/ZQit8r6YM3UMER1bF6V.OQ--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/http://i.imgur.com/ZH9B85L.gif

Discount Percentage = (Marked Price - Selling Price)/(Marked Price) × 100%

Last Year:
Marked price = $7200
Selling price = $6120
Discount percentage = (7200 - 6120)/7200 × 100% = 15%

This Year:
Marked price = $6400
Selling price = $5600
Discount percentage = (6400 - 5600)/6400 × 100% = 12.5%

Therefore, the discount percentage last year is greater.


圖片參考:https://s.yimg.com/rk/HA00430218/o/1589873243.jpg


2014-08-04 00:11:12 補充:
噢~
撞題了~

早知我讓你答~

不好意思~

( ^___^ )

2014-08-04 20:32:08 補充:
原來你 delete 左?

點解要 delete?

2014-08-04 21:18:15 補充:
原來係咁~

你真係有責任感!

好欣賞你!

你擔心星期五嗎?

2014-08-04 22:11:44 補充:
祝你好運!

By the way,係另一個帖的意見欄,我指出了:

quadratic "formula" ≠ quadratic "equation"

quadratic "formula" 是用來 solve quadratic equation 的。

2014-08-04 23:52:50 補充:
現在全對了~
加油!
(。◕‿◕。)

如果有時間可以學習一下不同的數學題,有些非常有趣,例如 qid=
7014080300090
1514071806283
1614072604259
1014062802997
7014072500135
1614031006176
1614061205714
7014032200171
2014-08-04 8:09 am
http://postimg.org/image/w4hj1nz55/

2014-08-04 20:30:07 補充:
唔緊要

其實我delete左我個答案

所以應該唔可以再回答多1次 0.0

2014-08-04 21:16:26 補充:
1開始,我第1行打少左個x100%

因為怕發問者會學錯東西

所以我Del左先 0.0

2014-08-04 21:52:12 補充:
只能順其自然 0.0

2014-08-04 23:00:45 補充:
我又打錯野 0.0

睇黎我打字要努力1下...

2014-08-04 23:43:16 補充:
現 在 好 了 嗎 ??

2014-08-05 01:00:40 補充:
的確有趣

特別第1題


收錄日期: 2021-04-15 16:07:26
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