Questions: Suppose 18,000 is deposited into an account paying 8.5% interest, compounded continuously.
How much money is in the account after 10 years if no withdrawals or additional deposits are made?
44,782.30
43,278.39
42,113.64
43,878.62
Transcript text: Suppose $\$ 18,000$ is deposited into an account paying $8.5 \%$ interest, compounded continuously.
How much money is in the account after 10 years if no withdrawals or additional deposits are made?
$\$ 44,782.30$
$\$ 43,278.39$
$\$ 42,113.64$
$\$ 43,878.62$
Solution
Solution Steps
Step 1: Identify the Given Parameters
Principal (P): 18000
Annual Interest Rate (r): 8.5% or 0.085 in decimal
Time (t): 10 years
Compounding: continuous
Step 2: Apply the Formula
Since the interest is compounded continuously, we use the formula A = Pe^{rt}.
Substituting the given values, we get:
For continuous compounding: \(A = 18000e^{0.085 \times 10}\)
For annual compounding: \(A = 18000(1 + 0.085)^10\)
Step 3: Perform the Calculation
After performing the calculation, the future value A is approximately 42113.64.
Final Answer:
The future value of the investment, rounded to 2 decimal places, is 42113.64.