2021美国学术能力评估考试（SAT）真题模拟09-18

1、If 5a+3b = 35 and a/b = 2/5, what is the value of a?（单选题）

A. 14/5

B. 7/2

C. 5

D. 7

E. 9

试题答案：A

2、If the area of a square is 100 cm², then its perimeter is ______.（单选题）

A. 10cm

B. 20cm

C. 40cm

D. 200cm

E. 100cm

试题答案：C

3、Mike has a goal to bench press 220 pounds. When he started working out, Mike was able to lift 150 pounds. He has currently increased that amount by 20%. What percent of his current lifting amount must Mike increase to reach his goal of 220 pounds?（单选题）

A.

B. 22%

C. 22. 22%

D.

E.

试题答案：D

4、An amusement park ride has an elevator that brings riders to the top of a tower. Riders step off the elevator onto a straight slide, which leads from the top of the tower to level ground. The base of the slide is 400 feet from the base of the tower and the length of the slide is 500 feet. If the elevator rises at a rate of 10 feet per second, how many seconds does the elevator take to rise from the ground to the top of the slide?（单选题）

A. 30

B. 40

C. 50

D. 150

E. 300

试题答案：A

5、In any right triangle, the acute angles are ______.（单选题）

A. Equal

B. Adjacent angles

C. Vertical angles

D. Complementary angles

E. Supplementary angles

试题答案：D