SOLUTION: p is jointly proportional to q and r and p = 12 when q = 8 and r = 3 Constant: Equation:

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Question 1187931: p is jointly proportional to q and r and p = 12 when q = 8 and r = 3
Constant:
Equation:
Answer by MathLover1(20850) About Me  (Show Source):
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p is jointly proportional to q and r
p=k%2Aqr where k+is constant
k=p%2F%28qr%29++
if p+=+12+when q+=+8+and r+=+3, than
k=12%2F%288%2A3%29

k=12%2F24
k=1%2F2
and equation is
p=%281%2F2%29qr+

Constant: 1%2F2
Equation:p=%281%2F2%29qr+