Mathematics, 19.02.2021 02:10 simmonsl7790
A brine tank with a capacity of 80 liters initially contains 30 liters of solution containing 10 g of salt. Solution containing 2 g of salt per liter enters the tank through a pipe at a rate of 4 liters/min, while the mixture flows out of the tank through another pipe at a rate of 2 liters/min. (a) Let x(t) be the amount of salt (in grams) in the tank at time t. Write a differential equation satisfied by x(t). (b) Solve for x(t), using the initial condition described in the problem. (c) What is the concentration (in g/L) of salt in the tank at the instant that it overflows
Answers: 3
Mathematics, 21.06.2019 17:10
Determine whether the points (β3,β6) and (2,β8) are in the solution set of the system of inequalities below. x ? β3 y < 5? 3x + 2 a. the point (β3,β6) is not in the solution set, and the point (2,β8) is in the solution set. b. neither of the points is in the solution set. c. the point (β3,β6) is in the solution set, and the point (2,β8) is not in the solution set. d. both points are in the solution set.
Answers: 3
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Mathematics, 21.06.2019 20:50
What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex
Answers: 2
Mathematics, 21.06.2019 21:00
Which expression is equal to (21)(7)(3x) using the associative property? (21 Β· 7 Β· 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)
Answers: 2
A brine tank with a capacity of 80 liters initially contains 30 liters of solution containing 10 g o...
Spanish, 28.08.2019 20:30
English, 28.08.2019 20:30
Social Studies, 28.08.2019 20:30
Mathematics, 28.08.2019 20:30
Mathematics, 28.08.2019 20:30
Mathematics, 28.08.2019 20:30
Biology, 28.08.2019 20:30
Chemistry, 28.08.2019 20:30
Biology, 28.08.2019 20:30