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20 March, 10:45

S varies directly as p and q. If p = 2 and q = 4 then S = 47.2. Find the constant of proportionality.

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  1. 20 March, 10:46
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    Answer

    5.9

    Explanation

    S varies directly as p and q.

    S ∝ pq

    S = kpq Where k is the constant of variation

    47.2 = k * 2 * 4

    47.2 = 8k

    k = 5.9
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