Final answer:
Joshua's $12,000 savings account will earn $1,350 in simple interest after 5 years at a 2.25% interest rate, calculated using the formula I = P x r x t.
Step-by-step explanation:
To calculate the amount of simple interest that Joshua will earn on his $12,000 savings account after 5 years at a 2.25% interest rate, we can use the simple interest formula:
I = P × r × t
Where:
- I is the interest
- P is the principal amount ($12,000)
- r is the annual interest rate (2.25% or 0.0225)
- t is the time in years (5)
Using these values, we calculate the interest as follows:
I = $12,000 × 0.0225 × 5
I = $1,350
So, after 5 years, Joshua's savings account will earn $1,350 in simple interest.