Answer:
9.76 years turns 900 dollars into 1200 dollars.
Step-by-step explanation:
A(t) = 900*(1.03)^t
1200 = 900 * (1.03)^t Divide by 900
1200/900 = (1.03)^t
1.333 = 1.03^t Take the log of both sides.
- log(1.3333) = t * log(1.03)
- log 1.3333 = .1249
- log 1.03 = .0128
1.249 = 0.0128*t
1.249/0.0128 t = 9.76 years.
