Mathematics, 07.04.2020 15:50 dpchill5232
A funnel in the shape of an inverted cone is 30 cm. deep and has a diameter across the top of 20 cm. Liquid is flowing out of the funnel at the rate of 12 cm3 /sec. At what rate is the height of the liquid changing at the instant when the liquid in the funnel is 20 cm. deep? Round to the nearest thousandth.
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(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.
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A funnel in the shape of an inverted cone is 30 cm. deep and has a diameter across the top of 20 cm....
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