标题: 求一到数学题解释,有点绕 [打印本页] 作者: libo6028918 时间: 2010-3-4 20:09 标题: 求一到数学题解释,有点绕 Before being simplified,the instrctions for computing income tax in Country R were to add 2 percent of one's annual income to the average(代数平均数)of 100 units of country R's courrency and 1 percent of one's annual income.问,如果一个人现在的income是X,那么他要交的税的公式