Mathematics, 01.04.2020 18:07, jlroy1971

A discount bookstore sells hardcover books for $12 and paperback books for $6. The number of hardcover books, x, sold one day was twice the number of paperback books, y, sold the same day. The total sales that day were $180. What is the system of equations that represents this situation

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A discount bookstore sells hardcover books for $12 and paperback books for $6. The number of hardcov...