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hammer [34]
1 year ago
6

There are 9 books stacked on a shelf. The thickness of each book is either 1 inch or 2 inches. The height of the stack of 9 book

s is 14 inches. Which system of equations can be used to determine x, the number of 1-inch-thick books in the stack, and y, the number of 2-inch-thick books?A. x + y = 9x + 2y = 14B. x + y = 142x + y = 9C. x + y = 14x + 2y = 9D. x + y = 92x + y = 14
Mathematics
1 answer:
azamat1 year ago
5 0

Given data:

The total numbers of books are n=9.

The

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