SOLUTION: The weight of a synthetic ball varies directly with the cube if its radius. A ball with a radius of 2 inches weighs 440 pounds. Find the weight of a ball witha 3 inch radius?

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Question 426389: The weight of a synthetic ball varies directly with the cube if its radius. A ball with a radius of 2 inches weighs 440 pounds. Find the weight of a ball witha 3 inch radius?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
440 = k*2^3 = 8k
k = 55
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W = k*3^3 = 27k
W = 1485 pounds