只要答案!! 唔該!
Q1: 3y ÷ 75% ＝24, what is y?
Q2:turn 5 又 2/5 into percentage.
Q3:500 × (1- 25% ) × (1- 10% )
Q4:The marked price of a printer is $300. Its selling price is $270, discount percent is
Q5: Amy’s height was 145cm last year. This year her height is increased by
4%. What is Amy's height now?
Q6:There was 2400 cm3 (cm cube) of sand in a tank. 4 hours later, only 300 cm3 of sand was left in the tank. What was the average percentage of sand leaking in
each hour?
Q7:A teacher prepared 94 marbles for the students. How many more marbles would
be needed so that all the marbles would be equally shared among 6 groups?
Q8: What is the smallest number that should be subtracted from 1181 so that the new number is divisible by 9?
Q9: The average mark of the first 3 tests was 88. what should be the mark of the 4th test so that the average mark of all 4 tests would be 89?
急！20點！小六數學功課！(有些是英文)
2014-03-04 2:29 am
回答 (4)
2014-03-04 2:58 am
✔ 最佳答案
1)0.62)540%
3)337.5
4)10%off
5)145.58cm
6)25%
7)2marbles
8)2
9)92
參考: myself
2014-03-06 3:18 am
oh no!all people have some wrong answer
2014-03-05 3:18 am
1)0.6
2)540%
3)337.5
4)10%off
5)
Amy's height now.
145x(1+4/100)
=145x 104/100
=150.8cm
6)
the percentage of sand leaking in each hour.
(2100÷4/2100) *100%
= 525/2100 *100%
=25%
25%
7)2marbles
8)2
9)92
2014-03-04 19:21:33 補充：
因其他兩位回答者的5,6回答有D出入,所以我做埋step...
2)540%
3)337.5
4)10%off
5)
Amy's height now.
145x(1+4/100)
=145x 104/100
=150.8cm
6)
the percentage of sand leaking in each hour.
(2100÷4/2100) *100%
= 525/2100 *100%
=25%
25%
7)2marbles
8)2
9)92
2014-03-04 19:21:33 補充：
因其他兩位回答者的5,6回答有D出入,所以我做埋step...
2014-03-05 1:12 am
1) y=6
2) 540%
3) 337.5
4) 10%off
5) 150.8cm
6) 3.1225%
7) 2 marbles
8) 2
9)92
2) 540%
3) 337.5
4) 10%off
5) 150.8cm
6) 3.1225%
7) 2 marbles
8) 2
9)92
參考: me,so I am not sure I am right or wrong.
收錄日期: 2021-04-16 16:28:16
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140303000051KK00107