Y is inversely propotional to the square of x. When y=50, x=2. Find x when y=32

When y=50, x=2.
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y=k/x^2 where k is a constant. Plug in y=50, x=2: 50=k/4 so k=200 and y=200/x^2.

Now put y=32: 32=200/x^2, x^2=200/32=100/16, so x=10/4=5/2 or 2.5.

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