Algebra-2

If p varies directly as the square of q and inversely as the square root of r, we can write the equation as:

p = k * (q² / √r)

where k is the constant of variation.

To find the value of k, we can substitute the given values of p, q, and r into the equation:

60 = k * (6² / √81)

Simplifying:

60 = k * (36 / 9)

60 = 4k
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