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Over the course of the 60,000 miles, how many fewer pounds of CO2 are released by the 30 mpg car than by the 20 mpg car

Over the course of the 60,000 miles, how many fewer pounds of CO2 are released by the 30 mpg car than by the 20 mpg car?
A) 200
B) 300
C) 600
D) 800




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  1. To find out how many fewer pounds of CO2 are released by a 30 mpg car compared to a 20 mpg car over 60,000 miles, we need to first calculate the amount of fuel consumed by each car and then the CO2 emissions.

    1. Calculate the gallons of fuel used:

    – For the 20 mpg car:

    [

    text{Gallons used} = frac{60,000 text{ miles}}{20 text{ miles per gallon}} = 3,000 text{ gallons}

    ]

    – For the 30 mpg car:

    [

    text{Gallons used} = frac{60,000 text{ miles}}{30 text{ miles per gallon}} = 2,000 text{ gallons}

    ]

    2. Calculate the CO2 emissions (using the average CO2 produced per gallon of gas which is about 19.6 lbs):

    – For the 20 mpg car:

    [

    text{CO2 emissions} = 3,000 text{ gallons} times 19.6 text{ lbs per gallon} = 58,800 text{ lbs}

    ]

    – For the 30 mpg car:

    [

    text{CO2 emissions} = 2,000 text{ gallons} times 19.6 text{ lbs

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