4024/12 May/Jun 2024, Question 12: Rearranging Formulas
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
Using a = 5b + 7 and c = 4d − 9, find a value and rearrange a formula for d.
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Part (a) · 1 mark
Substitute b = −2 into a = 5b + 7 and calculate a.
- 1a = 5 × (−2) + 7 = −10 + 7
- 2a = −3
Answer−3
Part (b) · 2 marks
Rearrange c = 4d − 9 so that d is the subject.
- 1c + 9 = 4d
- 2d = (c + 9)/4
Answer(c + 9)/4
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Also searched as: 4024/12/M/J/24 · 4024_s24_qp_12 · 4024 s24 12 · question 12.
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