Mathematics, 10.07.2019 02:10 tdahna0403
Atank initially holds 200 gallons of fresh water (no salt). a brine solution containing 2 pounds of salt per gallon is poured in at a rate of 3 gallons per minute. the tank is kept well-mixed and drained at the rate of 3 gallons per minute. write and solve an initial value differential equation to model the amount of salt, a, in the tank at time, t. 2.
Answers: 2
Mathematics, 21.06.2019 18:50, anthonylemus36
Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens
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Mathematics, 21.06.2019 21:20, Boogates7427
Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?
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Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.
Answers: 3
Atank initially holds 200 gallons of fresh water (no salt). a brine solution containing 2 pounds of...
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