Math 123
Quantitative Reasoning
Homework 11 – Sec 12
Carbon Dioxide Emissions
1. The gas tank of a 2012 Toyota Prius holds 11.9 gallons. How many pounds of carbon dioxide are produced by
burning an entire tank of gas?
2. The gas tank of a 2013 Honda Accord holds 17.2 gallons. How many pounds of carbon dioxide are produced by
burning an entire tank of gas?
3. If a truck gets 14 miles to the gallon on average, how much carbon dioxide is emitted into the atmosphere when the
truck travels 200 miles? (round to two decimal places)
4. The Honda CR-Z gets 37 miles per gallon on average. How much carbon dioxide would be emitted if the Honda were
driven 400 miles? (round to two decimal places)
5. How much carbon dioxide will you prevent from entering the atmosphere in one year, if you replace a 100-watt light
bulb with a CFL bulb that uses 30 watts in a fixture that you have on 8 hours per day?
6. If you use your office computer 40 hours per week, and do not unplug the computer when it is not in use, how much
carbon dioxide is produced from the “vampire energy” used by the computer in one year? (round to three decimal
places)
7. A PS4 uses 8.8 watts when on stand-by mode. How much carbon dioxide is emitted if you have your PS4 on standby
24 hours a day for 1 week? (round to three decimal places)
Labels for Blackboard: gallons, pounds of CO2, watts