A piece of paper is #8.1 times 10^-5# m thick. Approximately how many pieces of paper are required to make a stack two metres high?

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Answer 1 · 2016-11-21T15:00:11

It would take approximately 24,691 pieces of this paper to get a stack 2 metres high.

Let's call the number of pieces of paper we are looking for #p#. We then can write our problem as:

#p * (8.1 xx 10^-5m) = 2m#

#(p * (8.1 xx 10^-5m))/(8.1 xx 10^-5m) = (2m)/(8.1 xx 10^-5m)#

#p = (2m)/(8.1 xx 10^-5m)#

#p = (2m xx 10^5)/(8.1m)#

#p = (0.246913 xx 10^5)#

#p = 24691#