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标题: prep数学题求问 [打印本页]

作者: togetherus 时间: 2013-2-5 07:17 标题: prep数学题求问

压根就没看懂什么意思啊，更别提求答案了，求各路大神赐教~~拜谢！
Before being simplified, the instructions for computing income tax in Country R were to add 2 persent of one's annual income to the average (arithmatic mean) of 100 units of Country R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in country R's currency, for a person in that country whose annual income in I?
答案是：50+I/40

作者: SharonZ0902 时间: 2013-2-6 08:02

100 units of Country R's currency是什么意思啊？

作者: xunjiejie88 时间: 2013-2-14 11:45

就是如果人民币的话就是100元，美元的话就是100美金

作者: zhuxiaocao 时间: 2013-2-15 13:24

add 2 persent of one's annual income to the average (arithmatic mean) of 100 units of Country R's currency and 1 percent of one's annual income

就是说 0.02I + (0.01I+100)/2

作者: WayneCH2012 时间: 2013-2-16 21:21

100 units of the country's currency 指100个该国货币基本单位，货币基本单位是一元，一美元或者一英镑

作者: togetherus 时间: 2013-2-17 19:17

嗯嗯，懂啦！谢谢大家了~

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