Apr. 14: Purchased $31,300 of merchandise on account, terms 1/10, n/30. The perpetual inventory system is used to account for inventory. Date Description Debit Credit Apr. 14 Inventory Accounts Payable May 13: Paid the invoice of April 14 after the discount period had passed. Date Description Debit Credit May 13 Accounts Payable Inventory Cash 31,300