Simple Interest Work each problem. See Example 5 . Levada...

Simple Interest Work each problem. See Example 5 . Levada borrows $\$ 30.900$ from her bank to open a florist shop. She agrees to repay the money in 18 months with simple annual interest of $5.5 \$$ (a) How much must she pay the bank in 18 months? (b) How much of the amount in part (a) is interest?

Simple Interest Work each problem. See Example 5 .
Levada borrows $\$ 30.900$ from her bank to open a florist shop. She agrees to repay the money in 18 months with simple annual interest of $5.5 \$$
(a) How much must she pay the bank in 18 months?
(b) How much of the amount in part (a) is interest?

Key Concepts

Time Period Conversion

Time period conversion involves converting the given time into the appropriate unit that matches the interest rate period, typically converting months into years. This is essential for accurate calculations when dealing with interest formulas, ensuring consistency between the time unit and the interest rate.

Interest Rate

The interest rate is the percentage charged on the principal for a period of time, usually expressed on an annual basis. This rate is used to determine the amount of interest accruable over the specified time period based on the simple interest formula.

Total Repayment Calculation

Total repayment calculation refers to the process of determining the overall amount to be repaid, which is the sum of the principal and the interest accrued over the period. Understanding this calculation is crucial in financial problems to separate the portion representing the initial amount and the additional interest paid over time.

Simple Interest

Simple interest is a method for calculating the interest charge on a loan. The interest is determined by multiplying the principal amount, the interest rate per period, and the time (usually in years) during which the money is borrowed. Unlike compound interest, simple interest does not add the accumulated interest to the principal for future interest calculations.

Principal

The principal is the initial sum of money borrowed or invested. It serves as the base amount on which interest is calculated. In problems involving simple interest, the principal remains unchanged over the period unless additional amounts are added or payments are made.

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