Mathematics, 20.09.2019 00:30 Weser17
Atank originally contains 160 gal of fresh water. then water containing 1 4 lb of salt per gallon is poured into the tank at a rate of 4 gal/min, and the mixture is allowed to leave at the same rate. after 8 min the process is stopped, and fresh water is poured into the tank at a rate of 6 gal/min, with the mixture again leaving at the same rate. find the amount of salt in the tank at the end of an additional 8 min.
Answers: 3
Mathematics, 21.06.2019 18:50
The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year
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Mathematics, 21.06.2019 19:00
Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?
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Mathematics, 21.06.2019 20:00
Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap
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Atank originally contains 160 gal of fresh water. then water containing 1 4 lb of salt per gallon is...
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