Pregunta
were deposited into an account wit
a
interest rate, compounded
continuously. How many years was it in
the bank if the current amount is
?
Round to the nearest year.
a
continuously. How many years was it in
the bank if the current amount is
Ask by Murray Pearson. in the United States
Jan 24,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The account was in the bank for approximately 46 years.
Solución
To solve this problem, we can use the formula for continuous compounding of interest:
where:
-
is the current amount in the account, -
is the initial deposit, -
is the interest rate, -
is the time in years.
Given:
- Initial deposit
, - Interest rate
, - Current amount
.
We need to find the time
in years.
Substitute the given values into the formula:
Now, we can solve for
using the formula:
Let’s calculate the value of
using the formula.
Calculate the value by following steps:
Calculate the value by following steps:
- step0: Calculate:
- step1: Divide the terms:
- step2: Rewrite the expression:
- step3: Multiply by the reciprocal:
- step4: Reorder the terms:
The timein years is approximately 46.05 years.
Therefore, the account was in the bank for approximately 46 years.
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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Bonus Knowledge
To find the time
for continuous compounding, you can use the formula:
where
is the amount of money accumulated after time
,
is the principal amount (the initial money),
is the rate of interest, and
is Euler’s number (approximately
).
In your case,
,
, and
. Plugging in these values, we have:
Dividing both sides by 600 gives:
Taking the natural logarithm of both sides:
Now, solve for
:
Rounding to the nearest year,
.
So, the answer is:

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