Division is an operation used in mathematics to split a number into simpler or smaller parts.
If they all weigh the same amount, each bookcase would weigh 58.5 pounds.
The question asks us to find the weight of each bookcase and this means we should find the weight of one bookcase.
Hence:
2 bookcases = 117 pounds
1 bookcase = ?
Cross Multiply
1 bookcase x 117 pounds / 2 bookcases
= 58.5 pounds
Therefore, If they all weigh the same amount, each bookcase would weigh 58.5 pounds.
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