Question

An average person in the United States throws away 4.5 × 10² g of trash per day. In 2013, there were about 3.2×1063.2×10^6 people in the U.S.

About how many grams of trash was thrown away in the United States in 2013?

Answer 1

If an average person in the United States throws away 4.5 × 10² g of trash per day and the number of persons is 3.2×10^6, then the mass of trash thrown away in United States would be 1.44 x 10^9 grams. This is obtained by multiplying the mass of trash thrown by one person to the number of persons in the U.S.