2. 外语
  3. If= 1, which of the following statements describes d in terms of n ?

If= 1, which of the following statements describes d in terms of n ?

admin2014-08-12  33
问题 If= 1, which of the following statements describes d in terms of n ?
选项 A、d is 4 less than n.
B、d is 4 more than n.
C、d is 3/7 of n.
D、d is 2 times n.
E、d is 5 times n.
答案E
解析 To describe d in terms of n, you need to solve the equation= 1 for d. To simplify the equation, you can begin by multiplying both sides by 7n - d and then proceed as follows.

d - 3n = 7n — d
d=10n-d
2d= 10n
d = 5n
The correct answer is Choice E.
转载请注明原文地址:https://jikaoti.com/ti/lldYFFFM
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)