SOLUTION: If y varies inversely as x and y= 200 when x= 4, find y when x= 10

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Question 432626: If y varies inversely as x and y= 200 when x= 4, find y when x= 10
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You are told y varies inversely with x.
so y+=+A%2Fx where A is some constant
You are told 200+=A%2F4 so A=+800
So now you can rewrite y+=+A%2Fx as y+=+800%2Fx
Now you are told to find y when x = 10
y+=+800%2F10+=+80