Mathematics, 07.10.2019 17:00 biancaalegriashaffer
Suppose brine containing 0.2 kg of salt per liter runs into a tank initially filled with 500 l of water containing 5 kg of salt. the brine enters the tank at a rate of 5l/min. the mixture, kept uniform by stirring, is flowing out at the rate of 5 l/min. (the same conditions as in the previous problem). after 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank.
(a) find the concentration, in kilograms per liter, of salt in the tank after 10 min. [hint: let a denote thenumber of kilograms of salt in the tank at t minutes after the process begins and use the fact that rate of increase in a = rate of input - rate of exit.
(b) after 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank. what will be the concentration, in kilograms per liter, of salt in the tank 20 min after the leak develops?
Answers: 2
Mathematics, 21.06.2019 16:00
Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°
Answers: 2
Mathematics, 21.06.2019 17:20
Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?
Answers: 2
Mathematics, 21.06.2019 21:30
Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.
Answers: 1
Suppose brine containing 0.2 kg of salt per liter runs into a tank initially filled with 500 l of wa...
Mathematics, 19.12.2020 23:30
Mathematics, 19.12.2020 23:30
Mathematics, 19.12.2020 23:30
Mathematics, 19.12.2020 23:30
Mathematics, 19.12.2020 23:30
Business, 19.12.2020 23:30
English, 19.12.2020 23:30
History, 19.12.2020 23:30
English, 19.12.2020 23:30
English, 19.12.2020 23:30
Chemistry, 19.12.2020 23:30
Mathematics, 19.12.2020 23:30