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Algebra 9 Online
OpenStudy (anonymous):

medal for answer

OpenStudy (anonymous):

OpenStudy (anonymous):

@hartnn

hartnn (hartnn):

what do you know about inverse variation?

OpenStudy (anonymous):

nothing :(

hartnn (hartnn):

when y varies inversely as x \(x y = k\) where k is the constant of proportionality

OpenStudy (anonymous):

ive studied though

hartnn (hartnn):

ok, so use xy = k x = 8, y = 6 find the value of k first!

OpenStudy (anonymous):

48

hartnn (hartnn):

good, xy = 48 now we want the value of y when x =10 plug in x = 10 in xy =48

hartnn (hartnn):

and isolate y

OpenStudy (anonymous):

4?

hartnn (hartnn):

how? 10 y = 48 y = 48/10 = ... ?

OpenStudy (anonymous):

4.8

hartnn (hartnn):

good! \(\huge \checkmark\) Since you seem to be new here, \(\huge \color{red}{\text{Welcome to Open Study}}\ddot\smile\)

OpenStudy (anonymous):

I have more questions

hartnn (hartnn):

feel free to ask as many questions as you need. one question per post though :) so close this one and open a new one!

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