SOLUTION: Hi Can you help me solve the following problem? Use the given information to find the constant of proportionality. W is inversely proportional to the square of r. If r = 2, the

Algebra ->  Equations -> SOLUTION: Hi Can you help me solve the following problem? Use the given information to find the constant of proportionality. W is inversely proportional to the square of r. If r = 2, the      Log On


   

Question 124819: Hi Can you help me solve the following problem?
Use the given information to find the constant of proportionality.
W is inversely proportional to the square of r. If r = 2, then W = 10.
k =
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
if quantities are inversely proportional, then their product is a constant

"W is inversely proportional to the square of r" __ Wr^2=k

"If r = 2, then W = 10" __ (10)(2^2)=k __ 40=k

Wr^2=40