A car hire company uses the formula T=C+rhT = C + rhT=C+rh to calculate the total cost T T\,T for hiring a car for h h\,h hours, where C C\,C is a fixed charge and r r\,r is the rate per hour.
Make r r\,r the subject of the formula T=C+rhT = C + rhT=C+rh
52 exam-style questions on AQA GCSE Maths Rearranging Harder Formulae. Each one has a worked solution and a mark scheme showing where the marks go.