A person places $4290 in an investment account earning an annual rate of 3.7%, 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 2 years.Answer:
Q. A person places $4290 in an investment account earning an annual rate of 3.7%, 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 2 years.Answer:
Identify Given Values: Identify the given values from the problem.Principal P=$4290Rate of interest r=3.7% or 0.037 (as a decimal)Time t=2 yearsWe will use the formula V=Pert to find the value of the account after 2 years.
Convert to Decimal: Convert the percentage rate to a decimal.To convert a percentage to a decimal, divide by 100.3.7%=1003.7=0.037
Substitute into Formula: Substitute the values into the formula. V=4290×e(0.037×2)
Calculate Exponent: Calculate the exponent part of the formula. 0.037×2=0.074
Calculate e Value: Calculate e raised to the power of the exponent.e0.074 (Use a calculator for this step)e0.074≈1.076849
Multiply Principal: Multiply the principal by the result from the previous step.V=4290×1.076849
Find Account Value: Perform the multiplication to find the value of the account after 2 years. V≈4290×1.076849≈4620.03