Question

A quantity p varies jointly with r and s. which expression represents the constant of variation, k? prs startfraction p over r s endfraction startfraction r s over p endfraction p r s

Answer 1

k = p/(rs)

Explanation:

The equation that represents p varying jointly with r and s will be ...

p = k·r·s . . . . . . . . for some constant of variation k

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Solving this equation for k gives ...

k = p/(rs) . . . . . divide by the coefficient of k