Mathematics, 23.12.2019 03:31 tvoalicea
A50-gallon barrel is filled completely with pure water. salt water with a concentration of 0.3 pounds/gallon is then pumped into the barrel, and the resulting mixture overflows at the same rate. the amount of salt (in pounds) in the barrel at time t (in minutes) is given by q(t) = 15(1 − e−kt) where k > 0.
find k if there are 8.5 pounds of salt in the barrel after 20 minutes. solve for k exactly and then give your answer to 4 decimal places.
Answers: 2
Mathematics, 21.06.2019 17:00
Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?
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Mathematics, 21.06.2019 17:00
Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =
Answers: 1
Mathematics, 21.06.2019 20:00
Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10
Answers: 1
A50-gallon barrel is filled completely with pure water. salt water with a concentration of 0.3 pound...
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