PLEASE HELP!!!! I WILL FAN WHOEVER HELPS: Tucker invested $3500 at 2% interest compounded annually.
How much interest will he earn in 3 years?
A.
$70.00
B.
$210.00
C.
$214.23
D.
$3714.23
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OpenStudy (amistre64):
is just use the compounding formula ...
OpenStudy (amistre64):
\[A = P(1+r/n)^{nt}\]
OpenStudy (amistre64):
since its compounded annually; or once a year .. n=1 and the rest is relatively self defined
OpenStudy (anonymous):
so D?
OpenStudy (amistre64):
hmm, interest only, so we might want to subtract the original P from it ...
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OpenStudy (anonymous):
oh, i thought you can only x it
OpenStudy (amistre64):
3500(1.02)^3 - 3500
3500 [ (1.02)^3 - 1] for only the interest
OpenStudy (anonymous):
the answer is B.
OpenStudy (anonymous):
ok, thanks! :) to everyone who helped me!
OpenStudy (anonymous):
no problem
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OpenStudy (amistre64):
D - 3500 is not B
OpenStudy (anonymous):
it is?
OpenStudy (amistre64):
what is 3714 - 3500?
OpenStudy (anonymous):
ummm...
OpenStudy (anonymous):
214
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D is a 'trap'. D assumes you find the total amount (principal + interest). The question only asks for interest so we have to subtract the principal ...
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OpenStudy (amistre64):
the solution is 214, which option has 214 is the answer?
OpenStudy (anonymous):
oh
OpenStudy (anonymous):
C?
OpenStudy (amistre64):
then I agree with C :)
OpenStudy (anonymous):
ok!
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