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On a certain number line, if 3 is a distance of x from y, and 9 is a distance of
On a certain number line, if 3 is a distance of x from y, and 9 is a distance of
游客
2024-01-12
51
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问题
On a certain number line, if 3 is a distance of x from y, and 9 is a distance of x from z
Quantity A: the distance between y and z
Quantity B: 12
选项
A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案
D
解析
|x-y|=3,|x-z|=9,但是|y-z|我们无从计算,可能为12,也可能为6,所以选择D。
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