Substitution in Algebraic Expressions · CSEC Mathematics

47 past-paper questions on Substitution in Algebraic Expressions, part of ALGEBRA, from every CSEC Mathematics paper on Quelpr.

1. 2(b)3 marks· CSEC Mathematics · 2009 (second paper) · Paper 2If m = 3 and n = -4, calculate the value of mn + n^2.
2. 2(a)(i)1 mark· CSEC Mathematics · 2021 · Paper 2Find the value of n when T = 49.
3. Q281 mark · multiple choice· CSEC Mathematics · January 2014 · Paper 1If a = 5, b = 2, c = 4, then 6ab - 2c =
4. Q251 mark · multiple choice· CSEC Mathematics · January 2017 · Paper 1If x = 4 and y = 2, what is the value of \frac{x^2 + 3y}{xy}?
5. Q271 mark · multiple choice· CSEC Mathematics · May/June 2011 · Paper 1P = \frac{m^2}{2 - m}. When m = -3, the value of P is
6. Q261 mark · multiple choice· CSEC Mathematics · May/June 2012 · Paper 1If x = -2, y = 3, t = 2, then \left(\frac{x}{y}\right)^t =
7. Q271 mark · multiple choice· CSEC Mathematics · May/June 2013 · Paper 1If x = 4 and y = 2, what is the value of \frac{x^2 + 3y}{xy}
8. Q251 mark · multiple choice· CSEC Mathematics · May/June 2015 · Paper 1Item 25 refers to the information below which shows the cost of a pen and a box. The total cost of 3 pens and 2 boxes is
9. Q271 mark · multiple choice· CSEC Mathematics · May/June 2015 · Paper 1P = \frac{m^2}{2 - m}. When m = -3, the value of P is
10. Q261 mark · multiple choice· CSEC Mathematics · May/June 2016 · Paper 1If x = -2, y = 3, t = 2, then \left(\frac{x}{y}\right)^t =
11. Q291 mark · multiple choice· CSEC Mathematics · May/June 2016 · Paper 1What is the value of \frac{x^2 + 3y}{xy}, if x = 4 and y = 2?
12. 1(b)(i)1 mark· Mathematics Q1 1(b)(i)Determine Jenny's weekly wage if she served 230 customers.
13. 2(a)3 marks· Mathematics Q2 2(a)Given that a = 6, b = -4 and c = 8, calculate the value of (a^2 + b) / (c - b).
14. 2(a)2 marks· Mathematics Q2 2(a)Given that m = -2 and n = 4, calculate the value of (2m + n)(2m - n).
15. 2(a)(i)1 mark· Mathematics Q2 2(a)(i)Find the value of: a + b + c
16. 2(a)(i)1 mark· Mathematics Q2 2(a)(i)a(b + c)
17. 2(a)(i)1 mark· Mathematics Q2 2(a)(i)Evaluate ab - bc
18. 2(a)(i)1 mark· Mathematics Q2 2(a)(i)a - b + c
19. 2(a)(i)4 marks· Mathematics Q2 2(a)(i)Calculate the value of r when p = 6 and q = 12.
20. 2(a)(i)3 marks· Mathematics Q2 2(a)(i)Calculate the value of 4p - qr.
21. 2(a)(ii)3 marks· Mathematics Q2 2(a)(ii)Calculate the value of 2r².
22. 2(a)(ii)2 marks· Mathematics Q2 2(a)(ii)Evaluate b(a - c)^2
23. 2(a)(ii)1 mark· Mathematics Q2 2(a)(ii)2ab
24. 2(a)(ii)2 marks· Mathematics Q2 2(a)(ii)4b²-2ac / a+b+c
25. 2(a)(ii)1 mark· Mathematics Q2 2(a)(ii)Find the value of: b^2 - c^2
26. 2(b)(ii)5 marks· Mathematics Q2 2(b)(ii)The temperature in London is 15°C. Use the formula derived in (i) above to convert this temperature to degrees Fahrenheit.
27. 2(b)(ii)1 mark· Mathematics Q2 2(b)(ii)Given that F = 113, calculate the value of C.
28. 2(c)(i)1 mark· Mathematics Q2 2(c)(i)Find the value of F when m = 3, u = -1, v = 2 and t = 1.
29. 2(c)(ii)1 mark· Mathematics Q2 2(c)(ii)If the number 4 is the input, what number would be the output?
30. 2(d)(ii)b)1 mark· Mathematics Q2 2(d)(ii)b)Calculate the number of donuts in a large box.
31. 2(e)2 marks· Mathematics Q2 2(e)Find the value of 2π√(l/g) where π = 3.14, l = 0.625 and g = 10.
32. 4(a)2 marks· Mathematics Q4 4(a)Complete the table for the function y = x² – 2x – 3.
33. 4(a)2 marks· Mathematics Q4 4(a)Complete the table of values for the equation y = 40x + 75.
34. 4(a)(i)5 marks· Mathematics Q4 4(a)(i)Calculate the value of t when m = 20 and n = 48.
35. 4(a)(iii)2 marks· Mathematics Q4 4(a)(iii)The point P with coordinates (r, 2) lies on the line l. Determine the value of r.
36. 4(c)2 marks· Mathematics Q4 4(c)The point (-8, t) lies on the line segment PQ. Determine the value of t.
37. 5(b)(i)2 marks· Mathematics Q5 5(b)(i)Copy and complete the table below.
38. 6(a)2 marks· Mathematics Q6 6(a)Copy and complete the table.
39. 6(b)(i)2 marks· Mathematics Q6 6(b)(i)Complete the table by calculating and inserting the missing values of y.
40. 7(a)3 marks· Mathematics Q7 7(a)Given that y = x^2 - 4x, copy and complete the table below.
41. 7(b)3 marks· Mathematics Q7 7(b)Determine the value of k.
42. 8(a)(i)1 mark· Mathematics Q8 8(a)(i)Complete the table below for the function f(x) = 3 + 2x - x².
43. 9(a)(ii)2 marks· Mathematics Q9 9(a)(ii)Determine the value of v when E = 45 and m = 13.
44. 9(b)(i)2 marks· Mathematics Q9 9(b)(i)WITHOUT solving, show that (1, 2) is a solution for the pair of simultaneous equations.
45. 9(b)(iii)1 mark· Mathematics Q9 9(b)(iii)Hence, state the dimensions of the rectangle, in centimetres.
46. 9(b)(iii)3 marks· Mathematics Q9 9(b)(iii)Hence, state the lengths of the THREE sides of the triangle.
47. 12(b)(i)7 marks· Mathematics Q12 12(b)(i)Given that y = 2 - cos x, copy and complete the table below.