<40 marks> 各位知識朋友 , 入黎幫我手 ar !!! ( 數學F.1 ) (70)

👨🏻‍🏫 學術台數學

[匿名]

2008-07-25 1:37 am

各位知識朋友 , 入黎幫我手 ar !!!

我有幾條數學問題唔識 , 幫手解答 ar( 數學F.1 )!!!!!!!!!!!!!!! (要步驟)

1.Express 500g as a percentage of 4 kg.

2. Find x if 400% of x is 320.

回答 (2)

STEVIE-G™

2008-07-25 1:45 am

✔ 最佳答案

1.
percentage
=500g/4kg*100%
=500g/4000g*100%
=12.5%
2.
400%x=320
4x=320
x=80

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fiona

2008-07-25 1:47 am

**1000g=1kg
1.(500g/4kg)*100%
=(500/4000)*100%
=12.5%

2. x*400%=320
x*(400/100)=320
x=80

好耐冇做F.1 maths,唔知幫唔幫到你

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