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  5. SAT Section 2: Mathematics

Free SAT Section 2: Mathematics Exam Braindumps (page: 21)

Page 20 of 41
PDF with 161 Questions

A sack contains red, blue, and yellow marbles. The ratio of red marbles to blue marbles to yellow marbles is 3:4:8. If there are 24 yellow marbles in the sack, how many total marbles are in the sack?

  1. 45
  2. 48
  3. 72
  4. 96
  5. 144

Answer(s): A

Explanation:

The number of yellow marbles, 24, is times larger than the number of marbles given in the


ratio. Multiply each number in the ratio by 3 to find the number of each color of marbles. There are 3(3) = 9 red marbles and 4(3) = 12 blue marbles. The total number of marbles in the sack is 24 + 9 + 12 = 45.



What two values are not in the domain of

  1. 3, 12
  2. 3, 12
  3. 6, 6
  4. 6, 36
  5. 9, 36

Answer(s): A

Explanation:

The equation is undefined when its denominator, x2 9x 36, evaluates to

zero. The x values that make the denominator evaluate to zero are not in the domain of the equation.
Factorx2 9x -36and set the factors equal to zero:



The diagonal of one face of a cube measures 42in. What is the volume of the cube?

  1. Option A
  2. Option B
  3. Option C
  4. Option D
  5. Option E

Answer(s): B

Explanation:

Every face of a cube is a square. The diagonal of a square is equal toS2where s is the length of a side of the square. IfS2 = 42then one side, or edge, of the cube is equal to 4 in. The volume of a cube is equal toe3, whereis the length of an edge of the cube. The volume of the cube is equal to(4 in)3= 64 in3.



A line has a y-intercept of 6 and an x-intercept of 9.Which of the following is a point on the line?

  1. (6, 10)
  2. (1, 3)
  3. (0, 9)
  4. (3, 8)
  5. (6, 13)

Answer(s): A

Explanation:

A line with a y-intercept of 6 passes through the point (0, 6) and a line with an x-intercept of 9 passes through the point (9, 0). The slope of a line is equal to the change in y values between two points on the line divided by the change in the x values of those points. The slope of this line is equal to






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