國中數學能力測試
Music Videos, MTV Playlists, Reality TV, Artist News, Contests, VJ Alan, VJ Hanli | MTV Asia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+Watch the latest Music Video from your favorite artist. Get up to date Celebrity, Music News and Tour info. Watch episodes of your favorite MTV Reality Show. Enter and Win ......
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