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ACCUPLACER® QAS Practice Test #2 - Key ACCUPLACER® Practice Test QAS #2 - Key © 2017 The College Board
ACCUPLACER® QAS Practice Test #2 - Key 1. D: The correct solution is 48 because both sides of the equation multiplied by -4. x 2. D: The correct solution is 3. 3 2 2 15 5 Apply the distributive property. 3 4 8 x x x x Combine like terms on both sides. 5 5 23 x x x Add x to both sides. 6 5 23 x Subtract from both sides. 6 18 x Divide both sides by. 3 3. D: The correct solution is (-4, -8). The second equation is already solved for y. Substitute--12 in for y in the first equation. 2( 12) 20 x x Apply the distributive property. 2 24 20 x x Combine like terms on the left side. 24 20 x Add 24 to both sides. 4 x x Divide both sides by -1. 4 y Substitute -4 in the second equation for x. ( 4) 12 y 4) 12 Simplify using order of operations. 8 4. D: The correct graph has the two lines intersect at (-1, 2). © 2017 The College Board
ACCUPLACER® QAS Practice Test #2 - Key 5. C: The correct solutions are (2.2, 2.2) and (-2.2, -2.2) 2 2 Substitute x in for y in the second equation. 10 x x x 2 Combine like terms on the left side. 2 10 x 2 Divide both sides by 2. 5 x Apply the square root to both sides. 2.2 y Substitute 2.2 in the first equation. 2.2 y Substitute -2.2 n the first equation. 2.2 6. B: The correct solution s 35. The data set in order is 31, 32, 33, 33, 34, 35, 35, 36, 37, 37, 38, 39, and the middle numbers are both 35. Therefore, the median is 35. 7. B: The correct solution is 510 items because the three largest classes collected 180, 170, and 160 items. 8. C: The correct solution is C. The line graph has the correct values for each roller coaster. x 2 9. A: The correct solution is 25 9. 3) 3(5 2 2 (5 3)(5 3) 5 (5 x x 3) 25 15 15 9 25 9 x x x x x x x 2 2 10 D: The correct solution is 2 . x xy y ( 3 ) (5 2 2 2 2 2 2 2 2 2 2 2 4 3 3 ) ( 3 5 ) x 2 3 ) (4 xy 3 ) 2 x xy y x xy y x xy y y x xy y © 2017 The College Board
ACCUPLACER® QAS Practice Test #2 - Key x 2 11. A: The correct solution is as ( 5)( 5 x x x The expression 3 is rewritten ( 5)( 5 25). x x x 125 2 because the value of a is x and the value of b is 5. 25) 25 x y 12. C: The correct solution is because 25 3 2 25 x y x y x y 3 ( 2) 2 3 5 5 5 x 5 5 5 5 ) 5 5 x . ( ) ( ) ( x y x y x y 2 3 25 13. D: The correct solution is 15 because the first athlete's salary is about $30,000,000 and the second athlete's salary is about $2,000,000. So, the first athlete's salary is about 15 times larger. 14. A: The correct solution is -6 because the cube roots of -216 s -6. 15. B: The correct solution is a ten-sided number cube and use multiples of 2 because there are 4 results out of 10 that would match the probability of the actual event. 16. D: The correct solution is observational study because people were not randomly assigned to groups and their behaviors were observed. 17. 18. C: The correct solution is 2 15. There are 8 marbles out of 25 for the first event and 10 marbles out of 24 for the second event. The probability of the event is 8 10 80 2 25 24 600 15 . x © 2017 The College Board
ACCUPLACER® QAS Practice Test #2 - Key 19. B: The correct solution is 60% of gaining $2,500 and 40% of gaining $0. The expected value is 0.60(2,500) +0.40(0) = $1,500. 20. A: The correct solution is odd number cards. The complement of even number cards is odd. © 2017 The College Board
