SOLUTION: About how many years will it take for $1,800 to reach $2,500 at a simple intrest rate of 4%?

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Question 826490: About how many years will it take for $1,800 to reach $2,500 at a simple intrest rate of 4%?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
"Simple Interest", as in "no compounding". Rate assumed "per year".

year count_______________money result
1________________________1800+0.04(1800)
2________________________1800+2(0.04)(1800)
3________________________1800+3(0.04)(1800)
.
x________________________1800+x*(0.04)(1800)

Your question asks, what is x in 1800%2B%280.04%29%2A1800x=2500 ?
%280.04%291800x=700
highlight%28x=%28700%29%2F%280.04%2A%281800%29%29%29

Would 9 years be enough? No. Need full 10 years, but this would yield a bit more than 2500 dollars balance. Could the yearly earning be pro-rated? That would help.