請教中學f.3maths
回答 (8)
2006-10-17 12:36 am
✔ 最佳答案
該賬單原來的金額是 = $26/10%= $260
2006-10-17 3:49 am
假設 Y 為 原來金額,
Y x 10% = $26
Y x 10% / 10% = $26 / 10%
Y = $26 x 100 / 10
Y = $26 x 10
Y = $260
原來的金額是 $260
Y x 10% = $26
Y x 10% / 10% = $26 / 10%
Y = $26 x 100 / 10
Y = $26 x 10
Y = $260
原來的金額是 $260
2006-10-17 1:11 am
Let x be the original amount of the bill
10% of x = $26
x = $260
10% of x = $26
x = $260
2006-10-17 12:46 am
假設 Y 為 原來金額,
現在 Mr.李的賬單上十10%服務$,多付 $26,
公式為以下,
Y x 10% = $26
Y x 10% / 10% = $26 / 10%
Y = $26 x 100 / 10
Y = $26 x 10
Y = $260
所以賬單原來的金額是 $260
現在 Mr.李的賬單上十10%服務$,多付 $26,
公式為以下,
Y x 10% = $26
Y x 10% / 10% = $26 / 10%
Y = $26 x 100 / 10
Y = $26 x 10
Y = $260
所以賬單原來的金額是 $260
參考: MYSELF
2006-10-17 12:46 am
假設x 是Mr.李原來要付的金額
x ( 1 +10% ) = x +26
x ( 1.1 ) = x+ 26
1.1x = x+26
0.1x = 26
x = 260
x ( 1 +10% ) = x +26
x ( 1.1 ) = x+ 26
1.1x = x+26
0.1x = 26
x = 260
參考: I am also a F. 3 student
2006-10-17 12:38 am
260.....
$ x 1 + 10% - $ = 26
hence, $ = 26 / (1.1 -1) = 26 /0.1
$ x 1 + 10% - $ = 26
hence, $ = 26 / (1.1 -1) = 26 /0.1
2006-10-17 12:37 am
2. 26/10%
=26/0.1
=260
該賬單原來的金額$260
2006-10-16 20:08:04 補充：
我中學兩科數拎A
=26/0.1
=260
該賬單原來的金額$260
2006-10-16 20:08:04 補充：
我中學兩科數拎A
收錄日期: 2021-04-12 18:12:55
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