一個注滿水的杯放在窗台一段時間後,28%的水蒸發了。如果水杯的容量為75mL,求杯中剩下水的體積。

2007-06-03 7:25 pm

回答 (7)

2007-06-03 7:32 pm

✔ 最佳答案

75x(1-28)
=75x72%
=54mL

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2007-06-03 8:30 pm

杯中剩下水的體積是:
75x(1-28%)
=75x72%
=75x_72_
.........100
=54(mL)
======
杯中剩下水的體積是45mL

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2007-06-03 7:59 pm

杯中剩下水的體積是:
75x(1-28%)
=75x72%
=54 (mL)

參考: 老師

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2007-06-03 7:49 pm

75 x ( 1 - 28 )
=75 x 72%
=54 (mL)

參考: me

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2007-06-03 7:45 pm

剩下水的體積
75(1-28%)
=75x100分之72(約簡)
=54ml

參考: me

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2007-06-03 7:30 pm

杯中剩下水的體積：
75 x ( 100 - 28% )
= 54 ( ml )

參考: 自己

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2007-06-03 7:27 pm

75(1 - 28%) = 54 mL

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