Advising on Jim's Loan Simple Interest Calculation
Imagine you are working as a peer financial literacy mentor. A client, Jim, asks for your help to understand how the annual simple interest rate was determined for a loan he made. Jim lent his sister {}5{,}000 to help her buy a house. In years, she paid him the {}5{,}000, plus in simple interest.
To help Jim understand the systematic mathematics behind his transaction, write a brief explanatory guide (essay) recalling the systematic problem-solving steps you would use to determine his annual simple interest rate ().
In your guide, be sure to:
- State the formula for simple interest and define what each variable (, , , ) represents.
- Recall the values of the known variables from Jim's scenario and identify the unknown variable.
- Translate Jim's loan information into an algebraic equation.
- Explain the steps to solve the equation to find , expressing the final rate as a percentage.
- Demonstrate how to check the accuracy of the result.
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Related
In the scenario where Jim lent his sister {}5,000 for years and received in simple interest, match each component of the simple interest formula () with its corresponding value or description from the problem.
Jim lent his sister 5,000 dollars to help her buy a house. In 3 years, she paid him back the principal plus 900 dollars in interest. To calculate the annual simple interest rate () Jim charged using the formula , place the following steps of the problem-solving strategy in the correct order.
Jim lent his sister 5,000 dollars to help her buy a house. In 3 years, she paid him the 5,000 dollars plus 900 dollars in simple interest. Based on this scenario, what was the annual rate of simple interest () that Jim charged?
In the simple interest formula , the principal () for Jim's loan represents the total amount his sister returned to him (the initial loan plus the interest), which equals {}5,900.
Recalling the Final Interest Rate
Jim lent his sister {}5{,}000 for years, and she paid him back with in interest. After using the simple interest formula to set up the equation and solving for , the decimal answer is {}0.06. Expressed as a percentage, Jim's rate of simple interest was ____ %.
Advising on Jim's Loan Simple Interest Calculation