Step-by-step explanation
Since we have $4,000, and we need to charge a 15% interest rate, we can apply the following relationship:
![A=P\left(1+(r)/(12)\right)^{^(12*t)}](https://img.qammunity.org/2023/formulas/mathematics/college/f5rocedge4ypcmc0xeqpcr6h9gimwu4272.png)
Plugging in the terms into the equation:
![A=4000\left(1+(0.15)/(12)\right)^(12*5)-4000](https://img.qammunity.org/2023/formulas/mathematics/college/83pw10ftf1p4lxixltc1xs38drlb2e36ul.png)
Multiplying terms:
![A=4428](https://img.qammunity.org/2023/formulas/mathematics/college/grh98x1p0j629zad3mvofmzg240440t99x.png)
Dividing this value into 5 years:
![Monthly\text{ payment=}(4428)/(5*12)=73.81](https://img.qammunity.org/2023/formulas/mathematics/college/ps8krx1v7bvfkys28hcpn5od4hdtyoipvn.png)
In conclusion, we will need to pay $73.81