这是一道英语数学题!By using a stopwatch ,Peter finds that the time ta

这是一道英语数学题!
By using a stopwatch ,Peter finds that the time taken for a colour printer to print 100 identical documents is 7 minutes 5 seconds ,and the relative error is 1/85 .what is the possible range of time required to print 1 document?
唧唧歪歪的神婆 1年前 已收到1个回答 举报

adaiybgc 花朵

共回答了20个问题采纳率:80% 举报

100个 7min5s =425s 偏差1/85 即425/85=5s 425±5s
故对于1 个 所花时间的范围(range of time)为4.25±0.05s,即4.20s~4.30s.

1年前

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