un aging of a company's accounts receivable indicates that $10300 are estimated to be uncollectible. If Allowance for Doubtful accounts has a $3030 debit balance, the adjustment for the period will require a debit to Bad Debt Expense for $10300 . debit to Allowance for Doubtful Accounts for $13330 . debit to Bad Debt Expense for $13330 . credit to Allowance for Doubtful Accounts for $10300