Mathematics 0580 · IGCSE · Proportion

Proportion — practice question

$y$ varies inversely with $\sqrt{x}$, and $x$ varies directly with $w^2$. If $w = 12$, then $y = 12$.
(main)[3]

Find an expression for $y$ in terms of $w$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is $\frac{144}{w}$.” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI