Answer :

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Given the Initial principal and interest rate, the time taken for the value of the investment to reach $20,000 is 14.1 Years.

What is an interest in banking?

An Interest is simply the amount of money a lender or financial institution receives for lending out money or pays for receiving money.

The formular for calculating compound interest is expressed as;

A = P(1 + r/n)^(n*t)

Where A is final amount, P is initial principal balance, r is interest rate, n is  number of times interest applied per time period and t is number of time periods elapsed.

Given the data in the question;

  • Initial principal balance P = $8000
  • Interest rate r = 6.5% annual interested = 0.065
  • Compounded daily n = 365 days
  • Final amount A = $20000
  • Time t = ?

A = P(1 + r/n)^(n*t)

We make t the subject of the formula

t = In(A/P) / n[In(1 + r/n)]

t = In(20000/8000) / 365[In( 1 + 0.065/365 )]

t = In(2.5) / 365[In( 1 + 1.78×10⁻⁴ )]

t = In(2.5) / 365[In( 1.000178 )]

t = In(2.5) / 365[In( 1.000178 )]

t = 0.91629 / ( 365 × 0.00017798 )

t = 14.1 years

Given the Initial principal and interest rate, the time taken for the value of the investment to reach $20,000 is 14.1 Years.

Learn more about compound interest here: brainly.com/question/27128740

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