Question #7e510

1 Answer
Sep 26, 2017

#~~53.bar 6*10^21#

Explanation:

In your question, you say "how many." This is the same as saying "divided into." Since you want to know how many "dozens", which is 12, go into #6.44*10^22#, we simply do this:
#(6.44*10^22)/12#

#=(3.22*10^22)/6#

#=(32.2*10^21)/6#

#=5.36666666666666666667*10^21#

#=5.3bar 6*10^21#, which is how many dozens of atoms there are in that piece of silver jewellery.

I hope that helped!