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How many years will it take for an initial investment of $10,000 to grow to $5,000? Assume a rate of interest of 6% compounded continuously.

It will never reach $5,000.
About 5 years
About 10 years
About 15 years

1 Answer

6 votes

Final answer:

It will take approximately 11.57 years for an initial investment of $10,000 to grow to $5,000 with a compound interest rate of 6% compounded continuously.

Step-by-step explanation:

To find out how many years it will take for an initial investment of $10,000 to grow to $5,000 with a compound interest rate of 6% compounded continuously, we can use the formula:

A = P * e^(rt)

Where A is the final amount, P is the initial investment, e is Euler's number (~2.71828), r is the interest rate, and t is the number of years.

Plugging in the given values:

5000 = 10000 * e^(0.06t)

Dividing both sides by 10000:

0.5 = e^(0.06t)

Taking the natural logarithm of both sides:

ln(0.5) = ln(e^(0.06t))

Using the logarithmic property: ln(e^x) = x

ln(0.5) = 0.06t

Dividing both sides by 0.06:

t = ln(0.5)/0.06

Using a calculator, we find that t ≈ 11.57 years.

User Kian Ahrabian
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