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A person places 
$427 in an investment account earning an annual rate of 
3.7%, compounded continuously. Using the formula 
V=Pe^(rt), where 
V is the value of the account in t years, 
P is the principal initially invested, 
e is the base of a natural logarithm, and 
r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 16 years.
Answer:

A person places $427 \$ 427 in an investment account earning an annual rate of 3.7% 3.7 \% , compounded continuously. Using the formula V=Pert V=P e^{r t} , where V \mathrm{V} is the value of the account in t years, P \mathrm{P} is the principal initially invested, e \mathrm{e} is the base of a natural logarithm, and r r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 1616 years.\newlineAnswer:

Full solution

Q. A person places $427 \$ 427 in an investment account earning an annual rate of 3.7% 3.7 \% , compounded continuously. Using the formula V=Pert V=P e^{r t} , where V \mathrm{V} is the value of the account in t years, P \mathrm{P} is the principal initially invested, e \mathrm{e} is the base of a natural logarithm, and r r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 1616 years.\newlineAnswer:
  1. Identify Given Values: Identify the given values from the problem.\newlinePrincipal PP = $427\$427\newlineRate of interest rr = 3.7%3.7\% or 0.0370.037 (as a decimal)\newlineTime tt = 1616 years\newlineWe will use the formula for continuous compounding: V=PertV = Pe^{rt}
  2. Substitute into Formula: Substitute the given values into the formula. V=427×e(0.037×16)V = 427 \times e^{(0.037 \times 16)}
  3. Calculate Exponent: Calculate the exponent part of the formula. 0.037×16=0.5920.037 \times 16 = 0.592
  4. Calculate e Value: Calculate ee raised to the power of the result from Step 33.e0.592e^{0.592} (Use a calculator for this step)
  5. Multiply Principal: Multiply the principal by the result from Step 44.\newlineAssuming e0.5921.808e^{0.592} \approx 1.808 (using a calculator)\newlineV=427×1.808V = 427 \times 1.808
  6. Perform Multiplication: Perform the multiplication to find the final value. V427×1.808772.216V \approx 427 \times 1.808 \approx 772.216
  7. Round Final Value: Round the final value to the nearest cent. V$772.22V \approx \$772.22

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