【11.4更新至100】2014拾忆数学机经强大解析版

似水流年sherry · 发表于 2014-11-2 21:53:42

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似水流年sherry · 发表于 2014-11-2 21:54:19

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FoxyPigcat · 发表于 2014-11-2 22:13:22

的符合当时看见H副科级HA觉得好看

davidxin123 · 发表于 2014-11-2 22:19:46

At a speed of 50 miles per hour, a certain car uses 1 gallon of gasoline every 30 miles. If the car starts with a full 12 gallon tank of gasoline and travels for 5 hours at 50 miles per hour, the amount of gasoline used would be what fraction of a full tank?