國中數學能力測試
Home : Sum 41已知:媽媽比小孩大21歲,6年之後媽媽的年齡是小孩年齡的5倍。請問:爸爸現在在哪裡?(不要這麼快看解答嘛~~~~先用國中學過的數學計算一下ㄚ!)參考解答:假設媽媽是M歲,小孩是C歲。M=C+21M+6=(C+6)X5解聯立方程式:M=C+21M+6=(C+6)X5>>M+6=5C+30>>M=5C+Release of ‘Little Dreamer’ by Trevor Kidd Thu, Dec 12, 2013 at 1:52 PM by User 4 Comments Make Music Matter announces release of My Song for Change winning song and video. Toronto, ON (December 11, 2013) – After months of submissions, voting ......
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