SAT数学Problem Solving练习题（24）
- 2017年07月25日14:49 来源：互联网
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摘要：下面是小站SAT频道为大家整理了SAT数学Problem Solving练习题(24)，供考生们参考，以下是详细内容。
以下是小站SAT频道为大家整理了SAT数学Problem Solving练习题(5)，供考生们参考，以下是详细内容。
Question #9:
2·m - n = 4
m + 2·n = 12
Column AColumn B
(m + n)261
(a) The quantity in Column A is greater then the quantity in Column B.
(b) The quantity in Column B is greater then the quantity in Column A.
(c) The two quantities are equal.
(d) The relationship cannot be determined from the information given.
Answer: From the first equation, n = 2·m - 4. Then, the first equation will be m + 2·(2·m - 4) = 12
m + 4·m - 8 = 12 so 5·m = 20 and m = 4
From the first equation, n = 2·m - 4 = 2·4 - 4 = 4
Column A expression will be (m + n)2 = (4 + 4)2 = (8)2 = 64
The quantity in Column A is greater than the quantity in Column B.
