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Edexcel IGCSE Math A Foundation 2.3 E Derive a Formula or Expression Questions

Practise translating totals, rates, function machines and geometric relationships into simplified algebraic formulae.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • translate each stated quantity into an algebraic term before combining the total
  • form a formula from a verbal rule, rate or function-machine sequence
  • substitute geometric constraints and simplify step by step to prove a stated formula

Edexcel IGCSE Math A Foundation 2.3 E Derive a Formula or Expression Questions question 1

[Maximum number: 2]

Pamela, Sophia and Zoe are three friends.
Pamela has x dollars.
Sophia has 4 dollars more than Pamela.
Zoe has three times the number of dollars that Sophia has.
In total, the three friends have T dollars.

Write an expression, in terms of x, for T.

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