Mathematics 0580 · IGCSE · Proportion

Proportion — practice question

The quantity $d$ varies inversely as $(w + 1)^2$. When $w = 4$, $d = 3.2$.
(main)[3]

Find $d$ for $w = 7$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “So, $d = \frac{k}{(w+1)^{2}}$.” …

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