Final answer:
After 30 years, Alexx will have approximately $15,986.87 more than Spenser.
Step-by-step explanation:
The administrative fee charged by retirement funds each year is equal to 0.25% of the managed assets. In this case, Alexx and Spenser each invest $5,000 in the same stock, with Alexx earning 5% annually and Spenser earning 4.75% annually. After 30 years, the difference between the amount Alexx will have and the amount Spenser will have can be calculated by subtracting the accumulated fee charged to Spenser's retirement fund from the accumulated earnings of both investors.
To calculate this, we first find the accumulated earnings for Alexx and Spenser. Using the formula A = P(1 + r)^t, where A is the accumulated amount, P is the principal amount, r is the interest rate, and t is the time period, we get:
- Alexx's accumulated earnings: A = $5,000 * (1 + 0.05)^{30} = $16,288.95
- Spenser's accumulated earnings: A = $5,000 * (1 + 0.0475)^{30} = $15,761.55
Now, let's calculate the accumulated fee charged to Spenser's retirement fund. The fee is equal to 0.25% of the managed assets, so:
Accumulated fee = $5,000 * (0.0025)^{30} = $302.08
To find the difference between Alexx and Spenser, we subtract the accumulated fee charged to Spenser from Alexx's accumulated earnings:
Difference = $16,288.95 - $302.08 = $15,986.87
Therefore, after 30 years, Alexx will have approximately $15,986.87 more than Spenser.