0580/11 Oct/Nov 2021, Question 8: Substitution
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 3 marks
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The question, in short
Given P = 2n − 3t, find n when P = 9 and t = 8.
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Solution · 3 marks
- 19 = 2n − 3 × 8
- 29 = 2n − 24
- 32n = 33
- 4n = 16.5
Answer16.5
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Also searched as: 0580/11/O/N/21 · 0580_w21_qp_11 · 0580 w21 11 · question 8.
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