A school cafeteria prepares two types of meals: vegetarian and non-vegetarian. Each vegetarian meal costs $4.50 to prepare, and each non-vegetarian meal costs $6.00 to prepare. The total cost for preparing a day's meals is $1350. The equation represents this situation, where is the number of vegetarian meals and is the number of non-vegetarian meals. If the cafeteria prepared 150 vegetarian meals, what was the total cost, in dollars, of the non-vegetarian meals prepared?
