Asked by Tola

The quantity A varies directly as the cube root of P=8 when Q=2/3
Answered by John

A = K cube root 8 divided by 2/3

A = K 2 times 3/2
A =2k

K stands for a constant. I don't know if your teacher wants A= 2 or 2K for the answer.
Answered by Steve
A = k∛P

no idea what Q is, unless it is a typo.

If A = 2/3 when P=8, then

2/3 = k∛8
2/3 = 2k
k = 1/3
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