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標題:
1條數 5點
m(1-30%)=3.5 更新: 寫錯左係m(1-70%)=3.5
最佳解答:
m(1-30%) = 3.5 0.7m = 3.5 m = 3.5/0.7 m = 5 2013-04-22 18:15:54 補充： 少許補充: 1-30% = 70% 70 ÷ 100 = 0.7 所以步驟都可以寫成以下的樣子: m(1-30%) = 3.5 m X 70% = 3.5 0.7m = 3.5 m = 3.5/0.7 m = 5 2013-04-22 19:23:48 補充： 修正: m(1-70%) = 3.5 m X 30% = 3.5 0.3m = 3.5 m = 3.5/0.3 m = 11.66666...... m = 11.7(準確至三位有效數字)
其他解答:
m(1-70%)=3.5 m(30%)=3.5 0.3m=3.5 m=3.5/0.3 m=11.6(cor to 3 sig. fig.) 2013-04-22 19:35:06 補充： 打錯=,= m=11.7
1條數 5點
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發問:m(1-30%)=3.5 更新: 寫錯左係m(1-70%)=3.5
最佳解答:
m(1-30%) = 3.5 0.7m = 3.5 m = 3.5/0.7 m = 5 2013-04-22 18:15:54 補充： 少許補充: 1-30% = 70% 70 ÷ 100 = 0.7 所以步驟都可以寫成以下的樣子: m(1-30%) = 3.5 m X 70% = 3.5 0.7m = 3.5 m = 3.5/0.7 m = 5 2013-04-22 19:23:48 補充： 修正: m(1-70%) = 3.5 m X 30% = 3.5 0.3m = 3.5 m = 3.5/0.3 m = 11.66666...... m = 11.7(準確至三位有效數字)
其他解答:
m(1-70%)=3.5 m(30%)=3.5 0.3m=3.5 m=3.5/0.3 m=11.6(cor to 3 sig. fig.) 2013-04-22 19:35:06 補充： 打錯=,= m=11.7
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