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Mathematics 21 Online
OpenStudy (anonymous):

Assume that y varies inversely with x. If y = 7 when x = -3, find y when x = 7.

OpenStudy (ash2326):

It's given y varies inversely with x So the relation between the two would be of the form \[y= \frac kx \] We have y=7 when x=-3, from this find k Can you do that?

OpenStudy (anonymous):

@ash2326 why would i ask if i could do it???

OpenStudy (ash2326):

oops, I meant if you could plug in y=7 and x=-3 in \[y= \frac kx\] to find k Just substitute x and y value and find x

OpenStudy (ash2326):

Did you try?

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