The following are worked solutions for the questions in the math sections of the SAT Practice Tests found in the The Official SAT Study Guide Second Edition.
It would be best that you go through the SAT practice test questions in the Study Guide first and then look at the worked solutions for the questions that you might need assistance in. Due to copyright issues, we are not able to reproduce the questions, but we hope that the worked solutions will be helpful.
6. Correct answer: (E)
Y is the midpoint of
Which of the statement is true
Answer: (E) I and III
7. Correct answer: (C)
2r = 5s
5s = 6t
r in terms of t
Topic(s): Isolate variable, substitution
Substitute equation 2 into equation 1
Answer: (C) 3t
8. Correct answer: (A)
k passengers went on a bus trip
Each of the n buses can seat x passengers
One bus had 3 empty seats
The remaining buses are filled
Expression for n, x and k
Topic(s): Translating words to equations
If each of the n buses has x passengers, we will have nx passengers.
One of the buses has three empty seats.
So, the equation becomes nx – 3 = k
Answer: (A) nx – 3 = k
9, Correct answer: (A)
Value of x
Topic(s): Corresponding angles, supplementary angles
y + 50 = 80 (corresponding angles)
y = 30
x + y = 180 (supplementary angles)
x + 30 = 180
x = 150
Answer: (A) 150
10. Correct answer: (B)
3x2 < (3x)2
The value of x that makes 3x2 < (3x)2 a FALSE statement
When x = 0, then 3(0)2 is not less than (3 × 0)2
The false answer is (B), because any value multiply with 0 would be 0 and 0 is not less than 0.
Answer: (B) 0
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