The weight of a piece of wire (w w\,w grams) is directly proportional to its length (l l\,l cm).
w w\,w is given by the formula: w=klw = klw=kl
Find the length of a wire weighing 75 grams.
Give your answer in terms of kkk.
189 exam-style questions on Eduqas GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.