求数学jj题

coldlee

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 (arithmetic mean) of 100 units of Country R’s currency and 1 percent of one’s annual income. Which of the following represent the simplified formula for computing the income tax, in Country R’s currency, for a person in that country whose annual income is I?

coldlee

回复 12# caicainiao


    。。。懂了

caicainiao

懂了没？

caicainiao

回复 10# coldlee


给你理个主干吧 income tax= addA to the average of B and C
你吧units of Country R’s currency 理解成一个货币符号就行了

coldlee

回复 9# caicainiao


    to add 2 percent of one’s annual income to the average (arithmetic mean) of 100 units of Country R’s currency and 1 percent of one’s annual income.

caicainiao

回复 8# coldlee


    哪句没懂呢？

coldlee

回复 6# caicainiao


    为什么，题目什么意思

caicainiao

化简就得到答案了

caicainiao

回复 1# coldlee


    就是2%I 加上（100块钱跟1%I的平均数）

coldlee

回复 2# s


    50 +I/40