请教一道prep数学题

whsirius · 发表于 2011-4-9 14:52:04

Before being simplified, the instructions for computing income tax in country R were to add 2 percent of one's annual income to the average 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 is i?
50+3i/100

pandaforever · 发表于 2011-4-9 14:53:19

这个我正要问呐~~嘎嘎~~但是答案是50+I/40 吧??

pandaforever · 发表于 2011-4-9 14:54:25

这道题肿么也读不懂呀，谁来帮帮忙吧>oo<

whsirius · 发表于 2011-4-9 15:26:55

是的，答案打错了，是二楼的答案

pandaforever · 发表于 2011-4-9 19:37:53

T~T肿么木有人回答呀......顶......

sdcar2010 · 发表于 2011-4-9 20:49:17

1/2(100+I/100)+2I/100=50+I/40

pandaforever · 发表于 2011-4-9 23:53:49

呜呜，太感人了，谢谢楼上的NN！！终于看着式子把题读懂了.....

请教一道prep数学题

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