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25-03-2017
Mathematics

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Lenny has a remaining balance on his credit card of $3,000. His credit card has an APR of 20 percent. How much will he pay in interest in one month?
$50.20
$600
$50.00
$6.00

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Aliwohaish12 Aliwohaish12

25-03-2017

A=p(1+i/m)^mn
P=3000
i=0.20
M=12
n=1/12
A=3,000×(1+0.20÷12)^(12*1/12)
=3,050
Interest earned=3050-3000=50

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