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A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A s
A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A s
游客
2025-02-24
28
管理
问题
A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A speed of 33 feet per second is equivalent to a speed of x miles per hour.
Column A Column B
X 22.5
选项
A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案
C
解析
每小时30英里的速度与每秒44英尺的速度相等,每秒33英尺的速度与每小时x英里速度相等。
解:本题的正确答案为(C)。根据题干中给出的速度的不同单位之间的等价关系,考生可以直接列出下面的方程:30/44 = 3/33 → x=22.5
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