Martinez Corp. uses a periodic inventory system. Its records show the following for the month of May, in which 72 units were sold. Explanation Date Units Unit Cost Total Cost May 1 Inventory 35 $9 $315 15 Purchase 25 10 250 24 Purchase 40 11 440 Total 100 $1,005 (a) Calculate the weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost $ eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer