請問 A * 19.6% + A = 7.73 個A系點樣計出來?

2008-09-17 7:31 pm

唔該寫條程式比我,Thank you thank you!!

回答 (3)

2008-09-17 7:35 pm

✔ 最佳答案

A * 19.6% + A = 7.73
A * 0.196 + A = 7.73
1.196 * A = 7.73
A = 7.73 / 1.196
A ~= 6.46

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2008-09-17 7:41 pm

A * 19.6% + A = 7.73
A * 0.196 + A = 7.73
2A = 7.73/0.196
2A =(7.73/0.196)*100
2A= 7730/169

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2008-09-17 7:37 pm

(19.6%)A+A=7.73
(0.196)A+A=7.73
1.196A=7.73
A=7.73 / 1.196 = 6.4632 (round up to the nearest 4 decimial places)

參考: 個人意見

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