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Frank invests $1,000 in simple interest investment account that pays 8% a year. After a number of years, he withdraws his balance of $2,200. Using the formula mc006-1.jpg, how many years was his money
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Frank invests $1,000 in simple interest investment account that pays 8% a year. After a number of years, he withdraws his balance of $2,200. Using the formula mc006-1.jpg, how many years was his money invested?

User MarLeo
by
8.3k points

2 Answers

5 votes

Answer:

15

Step-by-step explanation:

I just got it correct!

User Charles Xu
by
7.5k points
4 votes
Hi there
The formula is
A=p (1+rt)
We need to solve for t
T=[(A/p)-1]÷r
Where
A future value 2200
P present value 1000
R interest rate 0.08
T time?
So
T=((2,200÷1,000)−1)÷0.08
T=15 years

Another time like this question you should post in at mathematics subject
Hope it helps
User MPelletier
by
8.2k points
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