4024/11 May/Jun 2024, Question 6: Expand and Simplify
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
Simplify an algebraic expression in r and s, then form an expression for the total cost in cents of 7 bananas at x cents and 5 apples at y cents.
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Part (a) · 2 marks
Simplify 6r + 7s − r + 3s by collecting like terms.
- 16r − r = 5r and 7s + 3s = 10s
- 25r + 10s
Answer5r + 10s or 5(r + 2s)
Part (b) · 1 mark
Write an expression, in cents, for the total cost of 7 bananas costing x each and 5 apples costing y each.
- 17 bananas cost 7x, 5 apples cost 5y
- 2Total = 7x + 5y cents
Answer7x + 5y
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Also searched as: 4024/11/M/J/24 · 4024_s24_qp_11 · 4024 s24 11 · question 6.
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