Answer:
The amount of total interest Cameron will earn on his investments at the end of 3 years is $1,171.80.
Explanation:
Let:
P = Principal
r = interest rate
t = number of years
n = number of times the interest is compounded in a year
Therefore, we have:
Interest on the account with simple interest after 3 years = P * r * t = $3,000 * 2.7% * 3 = $243
Interest on saving account after 3 years = (P * (1 + (r/n))^(n * t)) - P = ($5,000 * (1 + (1.8%/3))^(1 * 3)) - $5,000 = $90.54
Interest on certificate of deposit after 3 years = (P * (1 + (r/n))^(n * t)) - P = ($5,000 * (1 + (3.9%/3))^(4 * 3)) - $5,000 = $838.26
Total interest earned after 3 years = Interest on the account with simple interest after 3 years + Interest on saving account after 3 years + Interest on certificate of deposit after 3 years = $243 + $90.54 + $838.26 = $1,171.80
Therefore, the amount of total interest Cameron will earn on his investments at the end of 3 years is $1,171.80.
