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Svet_ta [14]
3 years ago
15

Suppose that you discover in your attic an overdue library book on which your grandfather owed a fine of 30 cents 100 years ago.

if an overdue fine grows exponentially at a 5% annual rate compounded continuously, how much would you have to pay if you returned the book today? (hint: if a(t) is the balance at the time t, then , where r is the interest rate expressed as a decimal, not in the percentage form).
Business
1 answer:
agasfer [191]3 years ago
4 0
FV=P*e^rt, where FV is future value, P is the principal, r is the interest rate, and t is the time. So in this case, we have:
FV=.30*e^100*0.05=.3*e^5=$44.524 due in fines, or 148 times the original 30-cent fine
☺☺☺☺
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<h3>Spinning</h3>

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