As part of a chemical experiment, a scientist determines that the number of milligrams of sodium in a chemical solution can be approximated by the function N(t) = t³ 24t2 - 350t +9338 (0 ≤ t ≤ 60) - where N(t) is the number of milligrams of sodium and t is the time in minutes. Determine how long it will take for the amount of sodium in the solution to be minimized. Type your answer below round to the nearest tenth. It will take about minutes for the amount of sodium to be minimized.