Randall has an account balance of $675.54 in a savings account that earns interest at a rate of 2.5% compounded twice a year. If Randall opened the account eleven years ago, what was the principal deposit rounded to the nearest dollar?
+37093 This equaton gets used over and over...it would be good te commit it to memory
FV =PV (1+i)^n Fv = future value PV= present value i= interest in decimal PER PERIOD n= PERIODS
the period for this equaton is twice per year x 11 years = 22 periods
interest per period = 2.5 annual / 2 = 1.25
675.54 = PV(1.0125)^22
PV = ~~ $ 514. initial deposit 11 years ago
