2. 外语
  3. If ｜4-3x｜

If ｜4-3x｜

admin2013-05-19  5
问题 If ｜4-3x｜ <5, which of the following is a possible value of x? Select all such values.
选项 A、1
B、2
C、3
答案A, B
解析 The correct answer is A and B. This problem tests your knowledge of absolute values and inequalities. ｜4-3x｜ <5 can be written as two separate inequalities: 4-3x<5 and 4-3x>-5. Because the original inequality was a "less than," the word in between the two new inequalities must be AND. Solve both inequalities as follows:
4-3x<5
-3x-x<1/3
When you multiply both sides of an inequality by a negative number, you must reverse the inequality sign.
x >
Now move on to the next inequality.
4-3x>-5
-3x>-9
x<3
Answer choices A and B are both greater thanand less than 3.
转载请注明原文地址:https://jikaoti.com/ti/eEdYFFFM
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)