An average person in the United States throws away [tex]4.5 \times 10^{-1}[/tex] kg of trash per day. In 2013, there were about [tex]3.2 \times 10^6[/tex] people in the U.S.
About how many kilograms of trash was thrown away in the United States in 2013?
Answer (2)
Hello,
we have to multiply the total number of people by the amount of trash that an average person throws away, then:
T o t a l ki l o g r am s o f t r a s h = ( 4.5 ∗ 1 0 − 1 ) ∗ ( 3.2 ∗ 1 0 6 ) W e kn o w t ha t : x a ∗ x b = x a + b an d x b x a = x a − b T h e n : T o t a l ki l o g r am s o f t r a s h = ( 4.5 ∗ 1 0 − 1 ) ∗ ( 3.2 ∗ 1 0 6 ) T o t a l ki l o g r am s o f t r a s h = ( 10 45 ∗ 1 0 − 1 ) ∗ ( 10 32 ∗ 1 0 6 ) T o t a l ki l o g r am s o f t r a s h = ( 45 ∗ 1 0 − 2 ) ∗ ( 32 ∗ 1 0 5 ) T o t a l ki l o g r am s o f t r a s h = ( 45 ∗ 32 ) ∗ ( 1 0 − 2 ∗ 1 0 5 ) T o t a l ki l o g r am s o f t r a s h = 1440 ∗ 1 0 − 2 + 5 T o t a l ki l o g r am s o f t r a s h = 1440 ∗ 1 0 3 k g
In 2013, approximately 1,440,000 kg of trash was thrown away in the United States. This was calculated by multiplying the daily trash per person by the total population. The average person produced 4.5 × 1 0 − 1 kg of trash daily and there were about 3.2 × 1 0 6 people in total.
;
