幾題數學......急

2007-01-30 2:49 am

我想問將21分之8以百分數表示(如有需要,答案取至十分位),個答案會係大約= 40% or 38.1% 架??
比多一題, 9分之2
thx!!!!!!!

回答 (8)

2007-01-31 12:13 am

✔ 最佳答案

1)
8/21*100%
=38.095...%
=38.1%(取至十分位，即小數點後1位)
2)
2/9*100%
=22.22222...%
=22.2%(取至十分位，即小數點後1位)

參考: me

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2007-01-31 2:55 am

1)38.1%

2)22.2%

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2007-01-30 6:35 am

1. 約40%
2. 約20%

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2007-01-30 3:52 am

38.1
22.2

參考: 自己

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2007-01-30 3:18 am

38.095238095238095238095238095238%

=40%

2/9*100%

=22.22.....%

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2007-01-30 3:06 am

Q1)

8/21*100%

=38.0952%

=38.1%

Q2)

2/9*100%

=22.2222%

=22.2%

參考: me

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2007-01-30 2:58 am

8/21x 100%
=800/21 %
=39,0952381%
=39.1%

2/9 x 100%
=200/9 %
=2.222222222222.....%
=2.2%

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2007-01-30 2:52 am

8/21*100%
=38.095238095238095238095238095238%
=40%(準備至十分位)

2/9*100%
=22.2222222222222222222222222222222%
=20%(準備至十分位)

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