Holly wants to save money for an emergency. Holly invests $1500 in an account that pays an interest rate of 6.75%. How many years will it take for the account to reach $7300?
7300=1500(1+0.0675)t7300=1500(1.0675)tDividing both sides by 1500,7315=1.0675tTaking the logarithm,ln(7315)=tln(1.0675)Making 't' the subject,t=ln(7315)ln(1.0675)
