A person places $78800 in an investment account earning an annual rate of 7.4%, compounded continuously. Using the formula V=Pert, 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 3 years.Answer:
Q. A person places $78800 in an investment account earning an annual rate of 7.4%, compounded continuously. Using the formula V=Pert, 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 3 years.Answer:
Identify Given Values: Identify the given values from the problem.Principal P = $78800Rate of interest r = 7.4% or 0.074 (as a decimal)Time t = 3 yearsWe will use the formula V=Pert to find the value of the account after 3 years.
Convert Percentage to Decimal: Convert the percentage rate to a decimal. 7.4% as a decimal is 0.074.
Substitute Values into Formula: Substitute the given values into the formula. V=78800×e0.074×3
Calculate Exponent: Calculate the exponent part of the formula. 0.074×3=0.222
Calculate e Value: Calculate e raised to the power of the result from Step 4.e0.222 (Use a calculator for this step)
Multiply Principal: Multiply the principal by the result from Step 5.V=78800×e0.222(Use a calculator to find the value of e0.222 and then multiply by 78800)
Round Final Result: Round the final result to the nearest cent. (Use a calculator to get the final value and round it to two decimal places)