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6-80.
1. The height (h) of a cylinder varies directly with the volume (V) and inversely with the square of the radius of the base. Homework Help ✎

1. Find an equation for the height in terms of the volume and the radius. Use k to represent the constant of proportionality.

2. When the volume is 20 and the radius is 2, the height is 15. Find the height when the radius is 3 and the volume is 10.

$h=\frac{kV}{r^{2}}$