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A shelf is 120 cm long. Vicki fills the shelf with ten books, each with an average width of 2.8 cm. How many books can she fit on the 120 cm shelf?

Answer :

Final answer:

Vicki can fit approximately 42 books on a 120 cm shelf, assuming each book has an average thickness of 2.8 cm. This is calculated by dividing the shelf length by the average book thickness.

Explanation:

The question refers to calculating how many books can fit on a shelf given the average thickness of the books and the total length of the shelf. We first convert the length of the shelf to the same units as the book thickness, which is centimeters in this case. The shelf length is 120 cm. Then we divide the shelf length by the average book thickness to determine how many books can fit on the shelf:

Total number of books that can fit = Total shelf length / Average book thickness

Total number of books that can fit = 120 cm / 2.8 cm per book

Total number of books that can fit = approximately 42.86

Since we cannot have a fraction of a book, we round down to the nearest whole number, which means Vicki can fit 42 books on the 120 cm shelf.

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