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Mathematics, 31.07.2019 21:00 jhernandez70
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: © 2011 jupiterimages corporation each cone of the hourglass has a height of 18 millimeters. the total height of the sand within the top portion of the hourglass is 54 millimeters. the radius of both cylinder and cone is 8 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 has dripped to the bottom of the hourglass? 68.3 38.4 268.8 230.4
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Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.
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