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A cube is packed with decorative pebbles. If the cube has a side length of 6 inches, and each pebble weighs on average 0.5 lb per cubic inch, what is the total weight of the pebbles in the cube?
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A cube is packed with decorative pebbles. If the cube has a side length of 6 inches, and each pebble weighs on average 0.5 lb per cubic inch, what is the total weight of the pebbles in the cube?

User John Stamos
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1 Answer

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First we have to calculate the volume of the cube:
V = l³ , where l = 6 in
V = 6³ = 216 in³
Each pebble weights on average is 0.5 lb per cubic inch.
Weight = 216 in³ · 0.5 lb/in = 108 lb
Answer:
The total weight of the pebbles in the cube is 108 lb.
User Vaseph
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