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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 
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(急~)數學題請大家教教我喔!
Jun 6th 2014, 11:44

1.
30
÷ 4 = 7.5
紙箱每邊能容納積木的邊數 = 7
最多能裝積木總數 = 7³ = 343

2.
水深
= 20
³ ÷ [(22 - 1 x 2) x (12 - 1 x2] 公分
= 8000
÷ (20 x 10) 公分
= 8000
÷ 200 公分
=
40 公分

3.
倒入水後水深
= (24 x 1000)
÷ 40² 公分
= 24000
÷ 1600 公分
=
15 公分

加入鐵塊後水面上升
= (10
² x 16) ÷ 40² 公分
= 1600
÷ 1600 公分
=
1 公分

參考資料 賣女孩的火柴

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