Gannon has deposited $742 in a savings account that earns interest at a rate of 3.4% compounded monthly. What will the account balance be in 15 years?
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OpenStudy (anonymous):
A = P(1 + i/m)^(ym)
where:
A is the account balance
P is the deposit
y is the # of years
m is the compounding period.
Just substitute and simplify now.
OpenStudy (anonymous):
okay so p= 742 y=15 m= 12 ?
I'm confused
OpenStudy (anonymous):
Where's the confusion? You're doing fine so far.
OpenStudy (anonymous):
where does the percentage fit in?
OpenStudy (anonymous):
Example:
Just using 5% as an example
5% = 0.05
So, take the number for the "percent" and divide by 100 to use it in an equation.
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OpenStudy (anonymous):
So, what does 3.4% equal without the % sign?
OpenStudy (anonymous):
.034
OpenStudy (anonymous):
Good. you have all pieces now for your substitution.
OpenStudy (anonymous):
The "i/m" is 0.034/12
OpenStudy (anonymous):
YAY! okay i got it! you're amazing thank you so much
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