Which operation should be performed first to solve the inequality below? -3x + 5 = 23
2 answers:
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If 
is the amount of salt in the tank at time 
, then the rate at which this amount changes over time is given by the ODE
We're told that the tank initially starts with no salt in the water, so
.
Multiply both sides by an integrating factor,
:
Since, we have
so that the amount of salt in the tank over time is given by
After 10 minutes, the amount of salt in the tank is
We're told that the tank initially starts with no salt in the water, so
Multiply both sides by an integrating factor,
Since
so that the amount of salt in the tank over time is given by
After 10 minutes, the amount of salt in the tank is