SOLUTION: (a) y varies jointly as x and w and inversely as the square of z. Find the equation of variation when y=100, x=2, w=4, and z=20. (b) Then solve for y when x=1, w=5 and z=4. Ple

Question 1130524: (a) y varies jointly as x and w and inversely as the square of z. Find the equation of variation when y=100, x=2, w=4, and z=20.
(b) Then solve for y when x=1, w=5 and z=4.
Please show me how you get the answer, thanks.
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
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y varies jointly as x and w and inversely as the square of z.
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k, variation constant

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Find the equation of variation when y=100, x=2, w=4, and z=20.
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Simply substitute and solve for k.

Similar for (b). Substitute and solve.
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