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0580/32 Feb/Mar 2025, Question 5: Constructing Equations

Cambridge IGCSE Mathematics 0580 · Paper 32 (Core) · Calculator · 2 marks

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The question, in short

Write algebraic expressions for two real-life situations: trees planted over d days at t per day, and train passengers after x leave and y board.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Write an expression for the total number of trees planted in d days when t trees are planted each day.

  1. 1t trees each day for d days: d × t = dt

Answerdt

Part (b) · 1 mark

Write an expression for the passengers now on a train that started with p, lost x and gained y.

  1. 1Start with p, subtract x, add y: p − x + y

Answerp − x + y

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