Atank is filled with 1000 liters of pure water. brine containing 0.07 kg of salt per liter enters the tank at 9 liters per minute. another brine solution containing 0.06 kg of salt per liter enters the tank at 8 liters per minute. the contents of the tank are kept thoroughly mixed and the drains from the tank at 17 liters per minute. a. determine the differential equation which describes this system. let s(t) denote the number of kg of salt in the tank after t minutes. then dsdt= b. solve the differential equation for s(t). s(t)=

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay