Using the formula for simple interest, it is found that he paid $119.87 in interest.
The simple interest formula is given by:
[tex]E = PIt[/tex]
- E is the amount of interest earned.
- P is the principal(the amount of money invested).
- I is the interest rate(yearly, as a decimal).
- t is the time, in years.
In this problem:
- Borrowed $2,700, thus [tex]P = 2700[/tex]
- Interest rate of 3.5%, thus [tex]I = 0.035[/tex]
- From December 26, 2019 to February 21, 2021, there were 423 days, thus the time in years is [tex]t = \frac{423}{365} = 1.2685[/tex]
Thus, the interest paid was of:
[tex]E = PIt = 2700(0.035)(1.2685) = 119.87[/tex]
$119.87.
A similar problem is given at https://brainly.com/question/9593067