SOLUTION: The temperature, A(t), at time, t, of a body is given by: A(t)=70+30e^-t a)calculate the value of t when A(t)=70.55

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Question 1078899: The temperature, A(t), at time, t, of a body is given by: A(t)=70+30e^-t
a)calculate the value of t when A(t)=70.55
Answer by Alan3354(69443) About Me  (Show Source):
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The temperature, A(t), at time, t, of a body is given by: A(t)=70+30e^-t
a)calculate the value of t when A(t)=70.55
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A(t) = 70+30e^-t = 70.55
30e^-t = 0.55
e^-t = 0.55/30
e^t = 30/0.55
t = ln(30/0.55)