Many scientists believe that the increase of carbon dioxide (CO2) in the atmosphere is a major contributor to global warming. The Environmental Protection Agency estimates that one gallon of gasoline produces on average about 19 pounds of CO2 when it is combusted in a car engine.
(a) Find a formula for the amount A of CO2 a car produces in terms of the number n of miles driven and the gas mileage G mi/gal of the car.
(b) Debbie owns an SUV that has a gas mileage of 22 mi/gal. Debbie drives 15,000 miles in one year. Use the formula you found in part (a) to find how much CO2 Debbie's car produces in one year. (Round your answer to the nearest pound.)
_____ lb
(c) Debbie's friend Lisa owns a hybrid car that has a gas mileage of 54 mi/gal. Lisa also drives 15,000 miles in one year. Use the formula you found in part (a) to find how much CO2 Lisa's car produces in one year. (Round your answer to the nearest pound.)
_____ lb
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