Mathematics
Mathematics, 21.08.2019 16:30, jason1702

There are nine books stacked on a shelf. the thickness of each book is either 1 inch or 2 inches. the height of the stack of 9 books is 14 inches. which system of equations can be used to determine x the number of 1-inch books in the stack and y, th number of 2-inch-thick books?

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There are nine books stacked on a shelf. the thickness of each book is either 1 inch or 2 inches. th...

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