Atank contains 60 kg of salt and 2000 l of water. a solution of a concentration 0.015 kg of salt per liter enters a tank at the rate 7 l/min. the solution is mixed and drains from the tank at the same rate. let y be the number of kg of salt in the tank after t minutes. write the differential equation for this situation.

Assessment items item 1 garrett is a member of a movie club. he pays a monthly service fee of $5.75 and $2.50 for each movie he rents. which expression represents how much money he will spend for renting x number of movies a month?

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11