A+deposit+of+7,912+is+made+into+a+new+account+that+earns+5.75+simple+interest.+No+additional+deposits+or+withdrawals+will+be+made+for+2+years. Which amount is closest to the balance in the account at the end of 2 years?

1 answer

To calculate the balance in an account that earns simple interest, you can use the formula:

\[ A = P + I \]

where:

  • \( A \) is the total amount in the account after interest.
  • \( P \) is the principal amount (initial deposit).
  • \( I \) is the interest earned.

The formula for simple interest (\( I \)) is:

\[ I = P \times r \times t \]

where:

  • \( P \) is the principal (7,912),
  • \( r \) is the interest rate (5.75% or 0.0575 when expressed as a decimal),
  • \( t \) is the time in years (2 years).

First, calculate the interest earned over 2 years:

\[ I = 7,912 \times 0.0575 \times 2 \]

Now calculate:

\[ I = 7,912 \times 0.0575 \times 2 = 7,912 \times 0.115 = 910.88 \]

Next, find the total amount \( A \):

\[ A = 7,912 + 910.88 = 8,822.88 \]

Therefore, the amount closest to the balance in the account at the end of 2 years is approximately $8,822.88.