SOLUTION: If x varies inversely as y2, and x = 2 when y = 10, find x when y = 2.

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Question 607105: If x varies inversely as y2, and x = 2 when y = 10, find x when y = 2.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Note: Labeled Your Inquiry:  Alegebra:Proportions

If x varies inversely as y^2, and x  = 2 when y = 10, find x when y = 2.

Let k represent the constant defining this Inverse porportion

 x+=+y%5E2%2Fk

 2+=+10%5E2%2Fk

  k = 100/2 = 50

  k = 50

 x+=+2%5E2%2F50

   x = 4/50 = 2/25