Final answer:
The woman will withdraw $906 from her savings account after 120 days, including the interest earned at an annual rate of 2% on her initial $900 deposit.
Step-by-step explanation:
To calculate how much a woman will withdraw from a savings account after 120 days, given an initial deposit of $900 and an annual interest rate of 2%, we will use the formula for simple interest:
Interest (I) = Principal (P) × Rate (r) × Time (t).
First, we need to convert the interest rate to a decimal by dividing by 100. Next, the time has to be converted to years because the rate is annual, so 120 days is 120/365 of a year.
- The formula thus becomes: I = $900 × 0.02 × (120/365).
- Calculating the interest: I = $5.89 (rounded to two decimals).
After adding this interest to the principal, the total amount the woman will withdraw is the sum of $900 (principal) plus $5.89 (interest), which equals $905.89.
When rounding to the nearest dollar, she will withdraw $906.