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14. An aging of Accounts Receivable shows $100,000 of current sales, which we assume will become uncollectible at a rate of 1%. Receivables of $70,000 that are approximately 60-90 days old are estimated uncollectible at a rate of 10%. Older receivables of $20,000 are most likely uncollectible at a rate of 20%. The amount in allowance for doubtful accounts has a (credit) balance of $1,000. What is the required Journal entry to update the allowance account