Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$y$ varies inversely with the square root of $x$. If $y = 7$, then $x = 2.25$.
(main)[2]

Express $y$ in terms of $x$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$y=\frac{10.5}{\sqrt{x}}$” …

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