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OpenStudy (anonymous):
Suppose that y varies inversely with x. Write an equation for the inverse variation y=4 when x=7
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OpenStudy (pfenn1):
when y varies inversely with x, you can write the equation in the form of \[y=\frac k x\]where k is a constant. we know that y = 4 when x=7, so plug these into the equation and solve for k.
OpenStudy (anonymous):
4=|dw:1336707642504:dw|
OpenStudy (anonymous):
so y = 28/x ?
OpenStudy (pfenn1):
Right!
OpenStudy (anonymous):
YAY (: Thank you !
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