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OpenStudy (anonymous):
Please help! Suppose z varies directly as x and inversely as the square of y. If x=6, and y=2, then z=54. Find z when x=7 and y=3
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OpenStudy (welshfella):
z = kx -- y^2 where k is a constant to be found find k by plugging in the given values of z,x and y and solve for k Then replace k by this value you just found to give the require formula to calculate x,y or z.
OpenStudy (anonymous):
z=28 ?
OpenStudy (welshfella):
What did you get the value of k?
OpenStudy (anonymous):
36
OpenStudy (welshfella):
Yep Good work
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OpenStudy (anonymous):
Thank you!
OpenStudy (welshfella):
yw
OpenStudy (triciaal):
|dw:1450811785148:dw|
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