Q. If you save $8,152 now and the account pays 3.3% per annum, compounding monthly, how much is the outstanding balance at the end of year 9?
Identify variables needed: Identify the variables needed to calculate the future value of the investment.Principal amount P = $8,152Annual interest rate r = 3.3% or 0.033 (as a decimal)Number of times the interest is compounded per year n = 12 (monthly compounding)Number of years t = 9We will use the formula for compound interest: A=P(1+nr)nt
Convert interest rate: Convert the annual interest rate from a percentage to a decimal by dividing by 100.r=1003.3%=0.033
Substitute values into formula: Substitute the values into the compound interest formula. A=8152(1+120.033)(12×9)
Calculate value inside parentheses: Calculate the value inside the parentheses (1+r/n). 1+0.033/12=1+0.00275=1.00275
Calculate exponent: Calculate the exponent (nt). 12×9=108
Raise value to power: Raise the value inside the parentheses to the power of the exponent. (1.00275)108To calculate this, we can use a calculator.(1.00275)108≈1.349858807576003
Multiply principal amount: Multiply the principal amount by the result from the previous step to find the future value. A=8152×1.349858807576003Again, using a calculator for this multiplication.A≈8152×1.349858807576003≈11001.97