王明的补考成绩是x
（81*43+x+59）/45＝x-13.2
3483+x+59＝45（x-13.2）
3542+x＝45x-594
44x＝3542+594＝4136
x＝94
希望有帮助~~(*^__^*) 嘻嘻……
某班45名学生,一次数学测试有43名学生参加,平均分是81分,后来缺考的张明和王明进行补考,张明考59分,王明的补考成绩比45人的平均分多13.2分,王明补考得了几分?
某班45名学生,一次数学测试有43名学生参加,平均分是81分,后来缺考的张明和王明进行补考,张明考59分,王明的补考成绩比45人的平均分多13.2分,王明补考得了几分?
数学人气：347 ℃时间：2019-12-30 14:39:02
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