if y varies inversely as x and y=24 when x=8, find y when x is 4. Pleeeease Help Mehhh. (:
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OpenStudy (anonymous):
why didnt u pay attention in school sigh
OpenStudy (anonymous):
Im homeschooled.
OpenStudy (anonymous):
why not ask mommy
hartnn (hartnn):
when y varies inversely as x, we can write xy=k
its given that y=24, x=8
just put these values in xy=k and find k and tell me what u get.
OpenStudy (ajprincess):
y varies inversely with x means
|dw:1349018016911:dw|
First plug in the given value of y and x to find k..
Then use that value of k and x=4 and substitute in the eqn to find y.
Can u do @ZaCharyAllEn?
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OpenStudy (anonymous):
192 @hartnn
OpenStudy (anonymous):
@ajprincess idk. lol.
OpenStudy (ajprincess):
first put 24 in place of y and 8 in place of x in
\[y=\frac{ k }{ x }\] and solve for k.
Can u plz tell me vat u get?
OpenStudy (ajprincess):
@ZaCharyAllEn
OpenStudy (anonymous):
@ajprincess 192
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OpenStudy (ajprincess):
yup u right:)
OpenStudy (anonymous):
so is that the answer???
OpenStudy (ajprincess):
Nw put 4 in place of x and 192 in place of k in
\[y=\frac{ k }{ x}\]
and solve for y.
OpenStudy (anonymous):
48? @ajprincess
OpenStudy (ajprincess):
yup:)
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OpenStudy (anonymous):
thats all?
OpenStudy (ajprincess):
U are asked to find the value of y when x=4. that's what u hav found nw. So that's all.:)