Z varies directly as x^3 and inversely as y^3. if z=59 when x=8 and y=8, find Z if x=3 and y=4

Ravan Scafi asked Apr 26, 2023

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15 votes

Ravan Scafi asked Apr 26, 2023

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18 votes

$z=(kx^3)/(y^3)\\\\\\59=(k\cdot 8^3)/(8^3)\\k=59\\\\\\z=(59x^3)/(y^3)\\\\\\z=(59\cdot 3^3)/(4^3)=(1593)/(64)$

Dcolazin answered May 3, 2023

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