Mathematics, 23.06.2019 01:40, sydneip2394
Ui pre-test active time how many paperback books did gillian buy? gillian purchased 25 books at the library book sale. each hardcover book cost $1.50, and each paperback book cost $0.50. gillian spent a total of $26.50. the book costs can be represented by the system of equations below. 11 012 h + p = 25 1.50h +0.50p = 26.50
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