Question

In 2012, the United States produced 2000 and 16 million metric tons of CO2 from electricity alone. Let x represent the amount of CO2 produced by the United States in the year from transportation. Based on the chart, what equation can be used to solve for x? Units are in million metric tons.

a) x=2016
b) x=2016−2000
c) x=2000+2016
d) x=2016−16

Answer 1

To solve for the amount of CO2 produced by transportation, subtract the amount of CO2 produced by electricity from the total amount of CO2 produced. The equation is x = 2016 - 2000.

Step-by-step explanation:

To solve for x, the amount of CO2 produced by the United States from transportation, we can use the equation x = 2016 - 2000. This equation subtracts the amount of CO2 produced by electricity (2000 million metric tons) from the total amount of CO2 produced in 2012 (2016 million metric tons). This leaves us with the amount of CO2 produced from transportation alone.