prep数学题求问

zxhui · 发表于 2013-1-9 11:58:40

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

zxhui · 发表于 2013-1-9 16:11:42

自己顶一下吧，求各位NN的帮助啊~

zxhui · 发表于 2013-1-9 16:50:57

要不要就这么沉下去呀。。。

zxhui · 发表于 2013-1-9 17:11:26

zxhui · 发表于 2013-1-9 17:22:31

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

momolizhou0516 · 发表于 2013-1-9 20:09:36

就是如果人民币的话就是100元，美元的话就是100美金

thirdwheel · 发表于 2013-1-9 21:32:27

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

zhangzhenbao · 发表于 2013-1-9 23:16:43

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

zxhui · 发表于 2013-1-14 16:16:26

嗯嗯，懂啦！谢谢大家了~

prep数学题求问

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