act考试数学最难题目

act考试数学最难题目你们知道是哪些吗？其实ACT考试是比较简单的难度不大，难就难在国内的学生母语不是英语，所以理解起来可能有困难，所有下面有4道act考试数学最难题目分享给大家进行练习一下吧。

1, 3x3 · 2x2y · 4x2y is equivalent to

A. 9×7y2

B. 9×12y2

C. 24×7y2

D. 24x12y

E. 24x12y2

2、 Mr. Dietz is a teacher whose salary is $22,570 for this school year, which has 185 days. In Mr. Dietz's schooldistrict, substitute teachers are paid $80 per day. If Mr. Dietz's takes a day off without pay and a substitute teacher

is paid to teach Mr. Dietz's classes, how much less does the school district pay in salary by paying a substituteteacher instead of paying Mr.Dietz's for that day

F. $ 42

G. $ 80

H. $ 97

J. $105

K. $122

3、 So far, a student has earned the following scores on four 100-point tests this grading period:65,73,81, and82. What score must the student earn on the fifth and last 100-point test of the grading per iod to earn an averagetest grade of 80 for the 5 tests

A. 75

B. 76

C. 78

D. 99

E. The student cannot earn an average of 80.

4、 A rectangular lot that measures 150 ft by 200 ft is completely fenced. What is the approximate length, in feet,

of the fence

F. 300

G. 350