誰能幫我解小6的數學-速率 - 自行車
By Hazel
at 2007-10-29T00:00
at 2007-10-29T00:00
Table of Contents
河濱公園的自行車道長3500公尺.甲和乙分別從起點出發..甲騎車的分速是350公尺.乙騎車的分速是450公尺.甲出發3分鐘後乙才出發.在甲到達自行車道的終點前.乙可以追上他嗎?
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自行車
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By Irma
at 2007-10-31T18:13
at 2007-10-31T18:13
By Jake
at 2007-10-30T14:09
at 2007-10-30T14:09
By Christine
at 2007-10-31T07:53
at 2007-10-31T07:53
By Dora
at 2007-11-02T08:04
at 2007-11-02T08:04
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