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OpenStudy (anonymous):
An hourglass consists of two sets of congruent composite figures on either end. Each composite figure is made up of a cone and a cylinder, as shown below: Each cone of the hourglass has a height of 12 millimeters. The total height of the sand within the top portion of the hourglass is 47 millimeters. The radius of both the cylinder and cone is 4 millimeters. Sand drips from the top of the hourglass to the bottom at a rate of 10π cubic millimeters per second. How many seconds will it take until all of the sand
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OpenStudy (anonymous):
Hourglass with sand measuring 47 millimeters high
OpenStudy (anonymous):
@Directrix
OpenStudy (anonymous):
Not sure sorry :(
OpenStudy (anonymous):
its ok. thank you though.
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