Question
Paying Off a Credit Card with Payments that Form an Annuity After spending too much money on credit card interest last year, Alana applied for
Paying Off a Credit Card with Payments that Form an Annuity
After spending too much money on credit card interest last year, Alana applied for a new credit card that had a lower interest
rate of 16.9% compounded daily. The terms of her new credit card are similar to her old one. For any payment she makes within a month from the date of purchase, she will be charged no interest. However, if she does not pay off the full balance, interest is charged daily on the remaining balance effective from the date of purchase. Every month she must make a minimum payment.
On November 30, Alana completed all of her Christmas shopping using her new credit card. Also, she did not make any other
purchases in the following months.
d
Alana was shocked by how long it would take for her to pay off her debt if she continued to only make the minimum
payment of $20, and so she made a plan to be debt-free in six months. What equal payments would she have to make at
the end of each month (starting on June 30) in order to achieve this goal?
e.
If she followed her payment plan laid out in (d), what would the balance be on Alana's credit card after her third payment
(halfway through her repayment plan)?
f.
If on November 30, after making her final payment, her credit card balance is $0, how much interest did she pay towards
her credit card since November 30 the previous year?
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