Answer:
-2 > x
Step-by-step explanation:
Answer is b because it eliminates x when these two equations are combined
Answer:
(9+1/6)+(1.8+2 3/5)
55/6 + (9/5 + 13/5)
55/6 + 22/5
407/30 = 13 17/30 = 13.56
Assuming he had not dealt with the bank offering plan B before, he has nothing deposited two years back. Hence plan B only gives him only 0.2% annual interest for his deposit.
Plan A gives 0.25% for his deposit all the time.
So plan A is more advantageous.
For durations,
To reach $1,000,000 from $100,000, the money needs to grow 10 fold, or
(1+i)^n=10
n=log(10)/log(1+i).
So for plan A:
n=log(10)/log(1.0025)=922.18 years, while for
plan B
n=log(10)/log(1.0020)=1152.44 years.
Hope the bank(s) still exist at that time.
