To calculate the simple interest earned, you can use the formula:
\[ \text{Simple Interest} = P \times r \times t \]
Where:
- \( P \) is the principal amount (the initial amount of money),
- \( r \) is the rate of interest per year (as a decimal),
- \( t \) is the time the money is lent for, in years.
In this case:
- \( P = 10,000 \)
- \( r = 0.08 \) (8 percent as a decimal)
- \( t = 5 \) years
Now, plug the values into the formula:
\[ \text{Simple Interest} = 10,000 \times 0.08 \times 5 \]
Calculating that gives:
\[ \text{Simple Interest} = 10,000 \times 0.08 = 800 \] \[ \text{Simple Interest} = 800 \times 5 = 4,000 \]
So, the simple interest earned after 5 years is $4,000.