SOLUTION: Y varies directly X and inversely as the square of z. Y=50 when x=90 and z=3. Find y when x=75 and z=5.

SOLUTION: Y varies directly X and inversely as the square of z. Y=50 when x=90 and z=3. Find y when x=75 and z=5.

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Question 609658: Y varies directly X and inversely as the square of z. Y=50 when x=90 and z=3. Find y when x=75 and z=5.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Substitute the given initial values for

,

, and

. Solve for

Then, using the value you just derived for

use the new values of

and

, solve for

.

John

My calculator said it, I believe it, that settles it

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