80~100分数段的人数是全班考试人数的几分之几?(全班考试人数是40)

IamNotInnocent2022-10-04 11:39:541条回答

80~100分数段的人数是全班考试人数的几分之几?(全班考试人数是40)
内容:(由于试卷上是扇贝图,所以用文字来表达)80~89分,占2分之1;90~100分,占4分之1;60~69分,占40分之3;0~59分,有2人;70~79分,占8分之1.
是不是40×2分之1+40×4分之1,然后再÷40

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liyeyoyo 共回答了24个问题 | 采纳率79.2%
既然你已经求出来是四十了……
八十到一百之间分数段的百分比已经给出来了
用全班总人数乘以相应百分比
40*(1/2+1/4)得到30人 即为最终结果
其实LZ 作为刚才回答的售后服务 你直接hi我我就回答了……
希望对你有帮助
1年前

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根据所提示的内容写一篇短文,词数80~100.
根据所提示的内容写一篇短文,词数80~100.
上海是一座美丽的现代化城市,到处是高楼大厦和干净的街道.我们应该保护环境,多植树,种花,不乱扔垃圾,为2010年世博会做准备.
三毛的饼干1年前1
紫色雨翼 共回答了18个问题 | 采纳率94.4%
Shanghai is a beautiful metropolitan city with tall buildings lining the clean streets.It is a city full of life and bustling with activity.To keep the city in such an excellent state,we should strive to do our part to protect the environment.For instance,some of the things that we should do are to plant more trees and flowers and refrain from littering.This is all done in preparation for the World Expo to be held in Shanghai in 2010.