Tara has $40 in a savings account. The interest rate is 10% per year and is not compounded. How much will she have in total in 1 year? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$___
Q. Tara has $40 in a savings account. The interest rate is 10% per year and is not compounded. How much will she have in total in 1 year? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$___
Principal Amount: Tara's starting amount (principal) is $40.
Interest Rate: The interest rate is 10%, which as a decimal is 0.10.
Time: The time is 1 year.
Calculate Interest: Use the formula i=prt to calculate the interest. So, i=($40)×0.10×1.
Calculate Total Amount: Calculating the interest, i=($40)×0.10×1=($4).
Calculate Total Amount: Calculating the interest, i=$40×0.10×1=$4. Add the interest to the principal to find the total amount. So, total = $40+$4.
Calculate Total Amount: Calculating the interest, i=$40×0.10×1=$4. Add the interest to the principal to find the total amount. So, total = $40+$4. Calculating the total, total = $40+$4=$44.