Lemmara logoLemmaraWorked solution

0580/21 May/Jun 2021, Question 15: Rearranging Formulas

Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 4 marks

اقرأ هذا الحل مشروحاً بالعربي ←

The question, in short

Rearrange 2mh = g(1 − h) to make h the subject, showing the algebraic steps.

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

Solution · 4 marks

  1. 12mh = g − gh
  2. 22mh + gh = g
  3. 3h(2m + g) = g
  4. 4h = g/(2m + g)

Answerg/(2m + g)

Stuck on a step? Read the free lesson: Rearranging Formulas

Practise more rearranging formulas questions

Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.

Practise free on Lemmara

More past-paper questions on rearranging formulas

Also searched as: 0580/21/M/J/21 · 0580_s21_qp_21 · 0580 s21 21 · question 15.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.