Liz K.

asked • 03/01/19

Annual Simple Interest

Sara is looking to purchase a washer and dryer. The Saturday newspaper had an advertisement for a local appliance store offering​ "90 days, same as​ cash!" financing. Sara asked how the financing worked and learned that she could pay for the washer and dryer any time during the first 90 days for the purchase price plus sales tax. If she waited​ longer, she would have to pay the purchase​ price, plus sales​ tax, plus


annual simple interest for the first 90​ days, plus


simple interest per month​ (or any part of a​ month) on the unpaid balance after 90 days.​ Together, the washer and dryer cost


plus the


sales tax. Sara knew that her tax refund from the IRS would be


so she bought the washer and dryer confident that she could pay off the balance within the 90 days.

How much did it cost her to pay off this loan


days​ late?


​(Round to the nearest cent as​ needed.)

What annual simple interest rate does this amount​ to?


​(Round to four decimal places as​ needed.)

1 Expert Answer


Randall S. answered • 09/15/20

New to Wyzant

Experienced HS/college math tutor

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