It is now July 1, and online sales of romance, science fiction, and horror novels at OHaganBooks.com were disappointingly slow over the past month. This exercise is based on the following tables. Inventory of books in stock on June 1 at the OHaganBooks.com warehouses in Texas and Nevada is given below. Books in Stock (June 1)   Romance Sci Fi Horror Texas 3,000 4,000 2,500 Nevada 1,500 1,000 3,000 Online sales during June is given below. June Sales   Romance Sci Fi Horror Texas 100 200 300 Nevada 500 600 100 The number of new books purchased each month is as follows. Monthly Purchases   Romance Sci Fi Horror Texas 400 200 300 Nevada 300 400 400 Projected online sales for July is given below. July Sales (Projected)   Romance Sci Fi Horror Texas 500 50 100 Nevada 120 550 280 Assuming that sales continue at the level projected for July for the next few months, write down a matrix equation showing the inventory N at each warehouse x months after July 1. N =                   + x            500     How many months from now will OHaganBooks.com run out of Romance novels at the Texas warehouse? months

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