某班今天出勤率是百分之98,缺勤率是多少?
要算式.
人气:200 ℃ 时间:2019-11-22 14:00:54
解答
2% 假设有100人,98%出勤就是来了98人,2人没来,缺勤率就是2/100=2% 或者100%-98%=2% 再或者用方程设全班有x人,算式(x-98%x)/x=2%
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