This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Discourse > Substitution – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Substitution Quiz 24 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the solution to the following system?$^{y = 5}$$^{-3x + 4y = 8}$ A) (4, 5). B) (-3, 5). C) (-4, -20). D) (5, 7). Show Answer Correct Answer: A) (4, 5). 2. When x = 3, y = 6 and z = 7, find 2x-z A) -1. B) -2. C) -3. D) -4. Show Answer Correct Answer: A) -1. 3. Solve the system by substitution 3x-y = 4 x + 2y = 6 A) (-2, 2). B) (2, -2). C) (2, 2). D) (-2, -2). Show Answer Correct Answer: C) (2, 2). 4. Write the new equation to solve after using the substitution process correctly for the system.y = 5x-7-3x-2y=-12 A) -3(5x-7)-2y=-12. B) -3x-2(5x-7) =-12. C) -3x-2y = 12(5x-7). D) None of the above. Show Answer Correct Answer: B) -3x-2(5x-7) =-12. 5. Use substitution to evaluate the integral $\int\frac{6\cos t}{\left(2+\sin t\right)^2}dt$ A) $\frac{6}{2+\sin t}+C$. B) $\frac{3}{2+\sin t}+C$. C) $-\frac{6}{2+\sin t}+C$. D) $-\frac{3}{2+\sin t}+C$. Show Answer Correct Answer: C) $-\frac{6}{2+\sin t}+C$. 6. Y = 2x + 13x + y = 16 A) (3, 7). B) X = 3. C) (3, 5). D) (2, 7). Show Answer Correct Answer: A) (3, 7). 7. Work out the value of the following expressions when a = 3 and b = 42a A) 10. B) 5. C) 6. D) 8. Show Answer Correct Answer: C) 6. 8. In the sentence 'She likes reading, and so does he, ' what does 'does' substitute? A) She. B) Likes reading. C) He. D) Reading. Show Answer Correct Answer: B) Likes reading. 9. What is the solution to the system of equations:5x + 2y = 7 and y =-4x + 8? A) (-1, 4). B) (1, 6). C) (-2, 3). D) (3, -4). Show Answer Correct Answer: D) (3, -4). 10. Which word can substitute the phrase 'did not' in the sentence 'She did not finish her homework'? A) Won't. B) Didn't. C) Hasn't. D) Doesn't. Show Answer Correct Answer: B) Didn't. 11. Solve the following systems of equations using substitution:2y + x =-15x = 3y A) (9, -3). B) (-3, 9). C) (-3, -9). D) (-9, -3). Show Answer Correct Answer: D) (-9, -3). 12. What is the first step when evaluating (solving) the following expression?2a + b if a = 3 and b = 4 A) Substitute (plug) the number in for the variable. B) Look what answer my neighbor choose. C) Add 2a with b. D) Combine like terms. Show Answer Correct Answer: A) Substitute (plug) the number in for the variable. 13. Solve for y 3p = Y P is 6 A) 18. B) 36. C) 19. D) 12. Show Answer Correct Answer: A) 18. 14. If a = 2, calculate a + 7 A) 5. B) 9. C) 6. D) None of the above. Show Answer Correct Answer: B) 9. 15. Solve for x and y using the substitution method.5x + 3y = 7y = 4 A) (4, -1). B) (-1, 4). C) (1, 4). D) (4, 1). Show Answer Correct Answer: B) (-1, 4). 16. $f\left(x\right)=x^4-x^3-2x^2-17x+25$ A) 6. B) 10. C) 9. D) -2. Show Answer Correct Answer: B) 10. 17. Which two methods can you use to solve a system of equations? A) Graphing andSimplifying. B) Substitution andGraphing. C) Substitution andisolation. D) Graphing andIsolation. Show Answer Correct Answer: B) Substitution andGraphing. 18. If y=7, find the value of 2(y+4) A) 11. B) 22. C) 20. D) None of the above. Show Answer Correct Answer: B) 22. 19. Solve the system using substitution. $y=7x-8$ $y=-6x+5$ A) (-1, -1). B) (1, -1). C) (1, 1). D) (-1, 1). Show Answer Correct Answer: B) (1, -1). 20. Which is the solution to t/5 = 4 A) T=5. B) T=15. C) T=10. D) T=20. Show Answer Correct Answer: D) T=20. 21. Helping the poor and the disabled should be done freely and not forced. It should be ..... A) Generally. B) Voluntary. C) All the above. D) None of the above. Show Answer Correct Answer: B) Voluntary. 22. John did not hit back when his younger brother punched him. He did not ..... A) Retaliate. B) Erased. C) All the above. D) None of the above. Show Answer Correct Answer: A) Retaliate. 23. Evaluate u + xy, for u = 18, x = 10, and y = 8. A) 188. B) 98. C) 224. D) 36. Show Answer Correct Answer: B) 98. 24. Simplify $9c+5z+2$ A) 128. B) -124. C) -34. D) None of the above. Show Answer Correct Answer: C) -34. 25. Simplify $3b-\frac{-12}{r}$ A) 3. B) -9. C) -3. D) 9. Show Answer Correct Answer: B) -9. 26. Solve using substitution.y =-3x + 115x + y = 21 A) (1, -5). B) (1, 5). C) (-4, 5). D) (5, -4). Show Answer Correct Answer: D) (5, -4). 27. Using Substitution, solve for the following system of linear equations:$x=-2y-1$ $-6x=-2y+20$ A) (-3, 1). B) No solution. C) Infinitely many solutions. D) (2, -2). Show Answer Correct Answer: A) (-3, 1). 28. 10 + X = yIf X = 5, then Y = A) 10. B) 6. C) 15. D) None of the above. Show Answer Correct Answer: C) 15. 29. If d =-1 and b =-6, calculate db-b$^{2}$ A) -20. B) 18. C) -30. D) None of the above. Show Answer Correct Answer: C) -30. 30. What are delocalised electrons? A) Electrons that are not attached to any of the atoms in a molecule. B) Electrons that are shared between more than two atoms in a molecule. C) Electrons that are not attached to any one particular atom but free to move over all the atoms in a molecule. D) None of the above. Show Answer Correct Answer: B) Electrons that are shared between more than two atoms in a molecule. ← PreviousNext →Related QuizzesGrammar QuizzesEnglish Grammar QuizzesSubstitution Quiz 1Substitution Quiz 2Substitution Quiz 3Substitution Quiz 4Substitution Quiz 5Substitution Quiz 6Substitution Quiz 7Substitution Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books