Vicki puts 10 books on a shelf.The 10 books take up 28 centimeters.What is the mean (average) thickness of her books?= 2.8 cmThe shelf is 120 centimeters long.Vicki fills the shelf with a mixture of books like the first ten books.Estimate how many books she can get on the 120 cm shelf.Please show your working out.
so each book is an average of 2.8 cm so 120 divided by each book=number of books 120/2.8=42.85 round down since you can't fit .85 of a book on a shelf the answer is 42 books
