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MATH SOLVE
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Z varies directly with x2 and inversely with y. When x = 2 and y = 4, z = 3. What is the value of...
4 months ago
Q:
z varies directly with x2 and inversely with y. When x = 2 and y = 4, z = 3. What is the value of z when x = 4 and y = 9?
Accepted Solution
A:
z = (kx^2)/y -> 3 = (k(2^2))/(4) -> k=3
z = (3*4^2)/9 = 16/3