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SSAT备考资料：数学练习（一）
发布时间：
2011-12-29 00:00:00
摘要：
Whatistheaverage(arithmeticmean)of4x+5,7x-6,and-8x+2?
A.x+1
B.x+1/3
C.3x+1
D.3x+1/3
E.3x...
What is the average (arithmetic mean) of 4x + 5, 7x-6,and -8x+2?
A. x + 1
B. x + 1/3
C. 3x + 1
D. 3x + 1/3
E. 3x + 3 1/3
In a classroom of 35 students, 14 our male. What percent of the classroom is male?
A. 14%
B. 20%
C. 30%
D. 40%
E. 50%
If the area of a triangle is 24 and its base is 6, what is the length of the altitude to that base?
A. 3
B. 6
C. 8
D. 10
E. unknown
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