中一數學1題
2007-11-29 3:03 am
30% of students bring their own lunchboxes. 55% buy their lunch at school. If the difference between the two group is 60 students, find the number of F.1in the school.
回答 (6)
2007-11-29 3:07 am
✔ 最佳答案
Let the number of F.1 in the school is x.(55%-30%)x=60
25%x=60
x=240
Therefore the number of F.1 in the school is 240.
參考: My own answer
2007-11-29 7:59 am
Let the number of F.1 in the school is x,
(55% - 30%)x = 60
25%x = 60
0.25x = 60
x = 60/0.25
x = 240
Therefore the number of F.1 student in the school is 240.
(55% - 30%)x = 60
25%x = 60
0.25x = 60
x = 60/0.25
x = 240
Therefore the number of F.1 student in the school is 240.
2007-11-29 6:31 am
60 除(100%-55%-30%)=400人
60/(100%-55%-30%)=400 people
60/(100%-55%-30%)=400 people
2007-11-29 3:15 am
let Z be no. of student,
Z 乘 ( 55% - 30%) = 60
z = 60 / 25%
z = 240人
ok無????
希望幫到你
Z 乘 ( 55% - 30%) = 60
z = 60 / 25%
z = 240人
ok無????
希望幫到你
參考: 全公司同事心得
2007-11-29 3:10 am
Let the no.of F.1 students in the school be X ,
X ( 55%-30%) = 60
25%X = 60
X = 60 除 25%
X = 240
X ( 55%-30%) = 60
25%X = 60
X = 60 除 25%
X = 240
參考: ME
2007-11-29 3:09 am
240= =
2007-11-28 19:10:55 補充：
你check 下點la
2007-11-28 19:10:55 補充：
你check 下點la
收錄日期: 2021-05-03 05:38:30
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