2. 外语
  3. On the number line above, what is the coordinate of the point between Y and Z that is three times as far from point Z as from po

On the number line above, what is the coordinate of the point between Y and Z that is three times as far from point Z as from po

admin2013-05-19  35
问题
On the number line above, what is the coordinate of the point between Y and Z that is three times as far from point Z as from point Y ?
选项 A、1
B、-1
C、-3
D、-7
E、-9
答案D
解析 The correct answer is D. One way to quickly solve this problem would bo to note that the distance between the points is 16 units, so the correct answer will be 4 unitsfrom Point Y and 12 units from Point Z. You could also try each of the answer choices.
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