Mathematics, 24.06.2019 17:00, zanaplen27

The library sells 376 books at its annual used-book sale. the sale takes in a total of $2119. children's books cost $4 each, and adult books cost $7 each. let x = number of children's books sold, and let y = the number of adult books sold. write a system of equations to model this situation.

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The library sells 376 books at its annual used-book sale. the sale takes in a total of $2119. childr...