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 cm
The 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.
Thanx

Answers

Answer 1

Answer: $the\ mean\ hickness\ of\ Vicki's\ books= (28\ cm)/(10) =2.8\ cm\n\n28\ cm\ \rightarrow\ 10\ boocks\n120\ cm\ \rightarrow\ x\n\nx= (120\cdot 10)/(28) \approx42.9\n\nAns.\ Vicki\ can\ put\ 42\ books.$

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