為什麼會是這個答案的數學問題? - 憂鬱症

By Yuri
at 2017-03-07T15:37
at 2017-03-07T15:37
Table of Contents
http://imgur.com/a/mn4Aj
嗯 這陣子複習數學
數學白痴的情況有好了一點
比較看的懂一些方程式了
不過有些問題的解答還是想不懂答案為何如此?
所以想po上來 想知道到底錯在哪裡
第一題我不知道為什麼答案選項會是如此?
第二題我試著算了一下 應該是賠錢才對呀?
可是答案跟我想的不一樣
所以想麻煩懂的板友
@@~先謝謝了!
--
大家好,我現在是三個孩子的媽,現在懷了第四個,
我老公是個工程師,想當初和老公相遇是為了嚇我老
公,結果老公趕緊把螢幕敲壞,害我爬不回去。
--
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憂鬱症
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