SOLUTION: Suppose Karen has $1000 that she invests in an account that pays 3.5% interest compounded quarterly. How much money does Karen have at the end of 5 years?

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Question 1129003: Suppose Karen has $1000 that she invests in an account that pays 3.5% interest compounded quarterly. How much money does Karen have at the end of 5 years?
Found 2 solutions by rothauserc, josmiceli:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
The compund interest formula is
:
A = P(1 +r/n)^(nt), where 'A' is the amount of money after 't' years compounded 'n' times at interest rate 'r' with starting amount 'P'
:
Note n = 4 because the rate is compounded quarterly
:
A = 1000(1 +0.035/4)^(4*5) = 1190.3397
:
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At the end of 5 years Karen has $1190.34
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:

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+A+=+P%2A%28+1+%2B+r%2Fn+%29%5E%28n%2At%29+
+P+=+1000+
+r+=+.035+
+n+=+4+
+t+=+5+
+A+=+1000%2A%28+1+%2B+.035%2F4+%29%5E%28+4%2A5+%29+
+A+=+1000%2A1.00875%5E20+
+A+=+1000%2A1.190339+
+A+=+1190.34+
She will have $1,190.34
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check:
+1190.34%2F1000+=+1.00875%5E20+
+1.1903+=+1.1903+
OK