Solution: We are given:
On an average, one person in United states throws away [tex]4.5 \times 10^{2}[/tex] g/day
In 2013, the population in United states [tex]=3.2 \times 10^{6}[/tex]
So in 2013, [tex]4.5 \times 10^{2} \times 3.2 \times 10^{6}=1.44 \times 10^{9}[/tex] g/day of trash was thrown away.
In 2013, the number of days = 365
Therefore, in 2013 the amount of trash thrown away is:
[tex]1.44 \times 10^{9} \times 365=5.26 \times 10^{11}=5.3 \times 10^{11}[/tex] g
