Question

An average person in the United States throws away 4.5 × 10^–1 kg of trash per day. In 2013, there were about 3.2 × 10^6 people in the U.S.

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

5.3 × 10 ^? kg

Answer 1

\[4.5\times3.2=14.4=1.44\times10^1\approx1.4\times10^1\]
(Ignore the approximation if you're not concerned with significant digits.)

So you have
\[(4.5\times10^{-1})\times(3.2\times10^{6})=(1.4\times10^1)\times10^5=1.4\times10^6\]

Answer 2

It sais in a year which is 365 days so how would i do that?

Answer 3

SithsAndGiggles