
Candace S. answered 03/02/16
Tutor
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A day without Math is like a day without sunshine!
Hi Nikole,
someone opened an account with $2,500 18 years ago at a 2.8% interest rate, compounded annually. how much is in the account now?
The compound interest formula is
A=P[1 +r/n]nt
P=2500
t=18 yrs
r=2.8% which in a decimal is .028
n=1 since it is compounded annually
Substitute in the values
A=2500[1+.028]18
A=2500[1.028]18 use calculator
A=4109.76
ANSWER: The amount he has now is $4109.76
We're finished

Candace S.
Nikole,
You are so very welcome...anytime
Candace
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03/02/16
Nikole I.
03/02/16