数学题求教！谢谢

crystalxin · 发表于 2013-3-21 22:47:27

Before being simplified,the instrution for computing income tax in Country R were to add 2 percent of one's annual income to the average(arithmatic mean)of 100 units of Country R's currency and 1percent of one's annual income.Which of the following represents the simplified formula for computing the income tax,in Counrty R's currency,for a person in that country whose annual income is I ?
50+I/40
100+3I/100
(请教大家能翻译下题目到底啥意思么？谢谢哦)

A certain library assesses fines for overdue books as follows.On the first day that a book is overdue,the total fine is $0.1.For each additonal day that a book is overdue,the total fine is either increased by $0.3 or doubled,whichever result in the lesser account .What is the total fine for a book on the fourth day it is overdue?
$0.7
$0.8
(请教大家这个题目意思是不是说，按最小的罚金算，一地天使0.1，第二天最小的金额是翻翻就是0.2，第三天是0.4 ，第四天是0.8呢？这样计算比每天增加0.3小
)
Which of the following lists the number of pointsat which a circle can intersect a triangle?
1,2,3,4,and6 only
1,2,3,4,5and6
(这个题目是什么意思呢？
)
下面是一个条件充分性判断，选A,B,C,D,E?哪个？
Are at least10 percent of the people in countryX who are 65years old or the older employed?
1. in country x,11.3percemt of the population is 65years old or older.
2.in country x,the population is 65years old or older，20 percent of the men and10 percent of the women are employed.
For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n,inclusive.If p is the smallest prime factor of h（100）+1， then p is ?
greater than 40
(答案是这个，怎么算的呢？)

crystalxin · 发表于 2013-3-22 10:35:23

亲们来讨论讨论吧

数学题求教！谢谢

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