If your credit card balances are 400 for 5 days 650 for 9 da

If your credit card balances are $400 for 5 days, $650 for 9 days, $800 for 4 days and $725 for 12 days, what is your average daily balance?

Please include correct units rounded to the nearest cent.

Solution

average daily balance = balance from each day / total number of days

balance for 5 days = 400

balance for 9 days = 650

balance for 4 days = 800

balance for 12 days = 725

therefore , avearge daily balance = 400 + 650 + 800 + 725 / 5+ 9 + 4+12

average daily balance = 2575 / 30 = $85.833