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Please help

 May 25, 2023
 #1
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t = 2   hrs 

A = 145 - 25 = 120

Te =  25 

 

T(t) = 70 =  120 e^(k *2) + 25     solve for k = - . 49041

 

T(t) = 120 e^(- .49041 t )   + 25 

  40 = 120 e^(-.49041 t) + 25          solve  for t = 4. 24 hours 

 

 

( Let me know if this is incoorrect and I will re-evaluate) 

 May 25, 2023
edited by ElectricPavlov  May 25, 2023

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