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Seawater with a concentration of 8000 g/m3 is pumped into a well-mixed tank at a rate of 0.6 m3/hr. Because of faulty design work, water is evaporating from the tank at a rate of 0.025 m3/hr. The salt solution leaves the tank at a rate of 0.6 m3/hr.
(a) If the tank originally contains 1 m3 of the inlet solution, how long after the outlet pump is turned on will the tank run dry?
(b) Use numerical methods to determine the salt concentration in the tank as a function of time.
how do you write an introduction for lacsap's fractions? What technology can be used to find the general statement for the numerator and the denominator?
A survey was mailed to a total of 400 students; 100 were randomly selected from each of the freshman, sophomore, junior and senior classes last semester. What sampling method was used?
the angle of elevation to the top of the tower is twice the angle of elevation at a point 1120 feet from the base of the tower. You are to determine the height of the tower.
How many six-digit even numbers less than 200,000 can be formed using all the digits 1, 1, 2, 2, 3 and 5? How many permutations of the letters in the name ABBA are there?
To purchase additional park sites, the Anderson County treasurer invested $30,000 in an account that pays 8% annual interest, compounded quarterly. What is the value of the investment after 5 years? Use the Compound Interest Table. Round to the ne..
What other actions might Apex consider to increase profitability of the DIY alternator? Provide at least four specific ideas and determine the unit cost of each product using activity-based costing
in 2004 a sample of 250 household in ny showed that 62 paid their monthly phone bills by debit card. in 2009 a sample
In Hawaii it rains .642 of the days it rains for at least 5 minutes, what is the probability of it raining today?
A non-linear spring obeys the modified Hooke's Law: F=-kxex, Where F is force in newtons, k is 2(N/m), and x is horizontal displacement if the right end of the spring in meters measured from the origin. What is the work done in stretching this spr..
A sociologist recently conducted a survey of citizens over 60 years of age who have net worths too high to qualify for Medicaid but have no private health insurance.
A box contains 7 white balls and 3 red balls. Three balls are drawn at random. Inn how many ways can the three balls be drawn
There were 116 fewer blue balloons than white ones. How many balloons of each color did Marty inflate?
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