Atank contains 1860 l of pure water. a solution that contains 0.01 kg of sugar per liter enters a tank at the rate 9 l/min the solution is mixed and drains from the tank at the same rate. (a) how much sugar is in the tank initially? (kg) (b) find the amount of sugar in the tank after t minutes. amount = (your answer should be a function of t) (kg) (c) find the concentration of sugar in the solution in the tank after 45 minutes. concentration = (kg/l)

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −

What is the equivalent fraction for the following fraction using 5 as the multiplier? 1/2

Consider the diagram. lines e and c can be described as