Amber invested money in a savings account at a rate of 6 % simple interest. After one year, she

step 1 In this problem, we're told that someone has a savings account and that her savings account has

Amber invested money in a savings account at a rate of 6 %...

Key Concepts

Simple Interest

Simple interest is a method of calculating the interest charge on a loan or investment based solely on the original principal amount, without compounding. It involves multiplying the principal by the interest rate and the time period for which the money is borrowed or invested, making it a linear calculation that does not take into account any previous interest accrued.

Principal

The principal is the initial sum of money invested or borrowed before any interest is added. In the context of simple interest calculations, the principal is crucial because the interest amount is computed solely based on this original amount, regardless of the passage of time.

Interest Rate

The interest rate is the percentage at which interest is earned on an investment or paid on a loan over a given time period. It is typically expressed as a percentage and must often be converted to its decimal form when used in calculations. The rate determines how much the principal will grow in each time period under simple interest.

Time

Time refers to the duration over which the interest is applied to the principal. In simple interest calculations, time is usually measured in years, and it directly influences the total interest earned or paid, with longer durations resulting in greater interest accumulation proportional to the principal and the interest rate.

Transcript

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