This quiz works best with JavaScript enabled. Home > Grammar > Discourse > Substitution – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Substitution Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Solve the system of equations:4x+8y=20-4x+2y=-30 A) (-7, 1). B) (2, -5). C) (-2, 5). D) (7, -1). Show Answer Correct Answer: D) (7, -1). 2. Something that can be carried easily A) Relatable. B) Cartable. C) Potable. D) Portable. Show Answer Correct Answer: D) Portable. 3. If a = 4 and b = 6, what is the value of 3a + 5b? A) 40. B) 42. C) 44. D) 46. Show Answer Correct Answer: B) 42. 4. N = 3 A) 18. B) 54. C) -3. D) 14. Show Answer Correct Answer: D) 14. 5. Y =-6x-2y = 4x-12 A) (1, 8). B) (1, -8). C) (-1, 8). D) (1, 0). Show Answer Correct Answer: B) (1, -8). 6. Y =-2x + 5y = 2x-11 A) No Solution. B) (0, 0). C) (3, -1). D) (4, -3). Show Answer Correct Answer: D) (4, -3). 7. Solve the system of linear equations using substitution. $6x-y=24$ $6x+y=-12$ A) (-1, -18). B) (1, -18). C) (1, 18). D) (-1, 18). Show Answer Correct Answer: B) (1, -18). 8. When considering electrophilic aromatic substitution reactions electron withdrawing substituents (e.g. cyano) are described as ..... A) Ortho/para directing and activating. B) Ortho/para directing and deactivating. C) Meta directing and activating. D) Meta directing and deactivating. Show Answer Correct Answer: D) Meta directing and deactivating. 9. A style in which a writer makes a display of his knowledge A) Verbose. B) Pompous. C) Pedantic. D) Ornate. Show Answer Correct Answer: C) Pedantic. 10. Is $y$ $-y=8$ A) Yes, $y$. B) No, you need to divide-1 on both sides. C) No, you need to add y on both sides. D) No, you need to just erase the negative sign. Show Answer Correct Answer: B) No, you need to divide-1 on both sides. 11. Evaluate 8a-b if a = 10 and b = 6 A) 74. B) 38. C) 86. D) 8106. Show Answer Correct Answer: A) 74. 12. 10 + X = yIf X = 1, then Y = A) 11. B) 8. C) 9. D) None of the above. Show Answer Correct Answer: A) 11. 13. A system of equations is shown. y = 2x-5y = x + 1What is the solution to the system of equations? A) X = 6y = 7. B) X = 2y =-1. C) X = 2y = 3. D) None of the above. Show Answer Correct Answer: A) X = 6y = 7. 14. Solve the equation:x + 7 = 12 A) X = 5. B) X = 19. C) X =-5. D) X = 84. Show Answer Correct Answer: A) X = 5. 15. If b = 7 and e = 2, what is 3b + e? A) 24. B) 22. C) 23. D) 21. Show Answer Correct Answer: C) 23. 16. Simplify $7\left(-5b-9f\right)$ A) 189. B) -819. C) -189. D) None of the above. Show Answer Correct Answer: A) 189. 17. In the modern times, a sea voyage for pleasure can be called as A) Voyage. B) Boat trip. C) Cruise. D) Trawl. Show Answer Correct Answer: C) Cruise. 18. H decreased by 13 A) 13-h. B) H-13. C) H + 13. D) H / 13. Show Answer Correct Answer: B) H-13. 19. What is the solution to this system? Solve by substitution.y= 4x + 32x-3y = 21 A) (3, -9). B) (-3, -9). C) (-3, 9). D) (0, 1). Show Answer Correct Answer: B) (-3, -9). 20. What is the solution to the system of equations:y=2x and 5x-y = 9? A) (-3, -9). B) (3, 6). C) (-1, -3). D) (0, 0). Show Answer Correct Answer: B) (3, 6). 21. Solve the system of equations. What is the value of the X? 3x-y = 5 x + y = 3 A) X = 2. B) X = 1. C) X =-1. D) X =-2. Show Answer Correct Answer: A) X = 2. 22. Y =-x-5y = 3 A) 8, 1. B) 2, 3. C) -2, 2. D) -8, 3. Show Answer Correct Answer: D) -8, 3. 23. What is a Friedel-Crafts reaction? A) An electrophilic substitution reaction. B) A reaction to form a C-C bond to an aromatic ring. C) A reaction involving a Lewis acid. D) None of the above. Show Answer Correct Answer: B) A reaction to form a C-C bond to an aromatic ring. 24. Given f(x)=5x-2 and g(x)=x$^{2}$, find f(2)+g(7) A) 8. B) 57. C) 49. D) -41. Show Answer Correct Answer: B) 57. 25. Solve the system of linear equations using substitution. $x+y=7$ $7x+y=1$ A) (-1, -8). B) (1, 8). C) (8, -1). D) (-1, 8). Show Answer Correct Answer: D) (-1, 8). ← PreviousNext →Related QuizzesGrammar QuizzesSubstitution Quiz 1Substitution Quiz 2Substitution Quiz 3Substitution Quiz 4Substitution Quiz 5Substitution Quiz 6Substitution Quiz 7Substitution Quiz 8Substitution Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books