一道初一数学题 急求

2024-12-25 08:20:04
推荐回答(4个)
回答1:

1.他的工资是2300,超了700元(2300-1600),
不超过500元的部分有500元,即纳粹500*5%=25元,
超过500元到2000元部分有200元(700-500),即纳粹200*10%=20元,
所以该人应纳粹25+20=45元。
2.一步一步来计算他的工资,
如果工资刚好超过500,则纳粹25(第一题已计得)
如果工资刚好超过2000,则纳粹25+(2000-500)*10%=175,
如果工资刚好超过5000,则纳粹175+(5000-2000)*15%=625,
而该人纳粹250元,即他的工资为2000和5000元之间
在超过2000元到5000元部分,他纳了(250-175)=75的税,所以他在该部分的超出为75/15%=500元,可以计得他的工资比1600超出(2000+500)=2500元,
因此他的工资为1600+2500=4100元。
大概是这样了,(*^__^*) 嘻嘻……

回答2:

第一题:Y=500*0.05+200*0.1=45元
第二题:500*0.05+1500*0.1+x*0.15=250,得x=500
所以这个月的收入是:1600+500+1500+500=4100元

回答3:

1、 某人一个月的收入2300元,应该纳税多少元?
500×5%+1500×10%+300×20%=235元
2、 若某人上月上缴了250元的税,求他这个月的收入是多少?
设:他这个月的收入是X
500×5%+1500×10%+(X-500-1500)×20%=250
x=2375

回答4:

500×5%+1500×10%+300×20%=235元
500×5%+1500×10%+(X-2000)×20%=250
x=2375

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