some math

2006-11-22 3:47 am
光碟每張售25元,買5張或以上可獲八折。買6張光碟,共需付多少元?

列式

回答 (11)

2006-11-22 5:02 am
✔ 最佳答案
25x6x80%
=150x 80/100
=120(元)
參考: me
2006-11-22 4:15 am
(25×6)×0.8
參考: 我
2006-11-22 3:56 am
25*6*80%
=150*80/100
=15*8
=120
===
2006-11-22 3:54 am
$25X6X80%
$120
2006-11-22 3:53 am
(25x5)x0.8+25=$50
參考: me
2006-11-22 3:52 am
Price of 1 Disc = $25
Price of 6 Disc = $25 x 6 = $150

Condition: 20% off if more than 5 discs are purchased

Therefore total amount needed is:
$150 x 0.8
=$120
參考: Me
2006-11-22 3:52 am
25x6/10x8
=120
買6張光碟,共需付120元
參考: me
2006-11-22 3:51 am
25*6*0.8
=120元

< * =乘>
2006-11-22 3:51 am
25*6*0.8=120
2006-11-22 3:49 am
(25 * 6) * 0.8


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