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Geometry 70 Online
OpenStudy (anonymous):

For the upcoming holiday season, Dorothy wants to mold 20 bars of chocolate into tiny pyramids. Each bar of chocolate contains 6 cubic inches of chocolate. Dorothy plans to make chocolate pyramids with a square base of 1 square inch and a height of 2 inches. What is the largest number of pyramids she can make from the 20 bars of chocolate? a)240 b)180 c)450 d)520 e)580 please help !

OpenStudy (sleepyjess):

The answer would be b) 180 because there is 120 cubic inches of chocolate total. 20 x 6 = 120 The volume for a pyramid is 1/3Bh. So the volume for each pyramid is .66 cubic inches. Divide 120 by .66 and you have your number of pyramids.

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