标题: 求教700难题 [打印本页] 作者: christinashao 时间: 2010-11-9 23:11 标题: 求教700难题 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 1percent of one's annual income. which of the following represents simplified formula for computing the income tax,in country r's currency,for a person in that country whose annual income is i? 1 50+i/200 2 50+3i/100 3 50+i/40 4 100+i/50 5 100+3i/100 谢谢大家 帮忙看看吧~~~看不懂题啊作者: sdcar2010 时间: 2010-11-9 23:27
2% x i + 0.5 x ( 100 + 1% x i ) = 2.5% x i + 50
Answer C作者: sdcar2010 时间: 2010-11-9 23:28
Add X to the average of ( Y and Z )作者: christinashao 时间: 2010-11-14 11:18
对啊 非常感谢~~~