Automobiles have different fuel economies (mpg), and commuters drive different distances to work or school. Suppose that a state department of transportation is interested in measuring the average monthly fuel consumption of commuters in a certain city. The DOT might sample a group of commuters and collect information on the number of miles driven per day, number of driving days per month, and the fuel economy of their cars. Develop a predictive model for calculating the amount of gasoline consumed, using the following symbols for the data.
G= gallons of fuel consumer per month
M= miles driven per day to and from work or school
D= number of driving days per month
F= fuel economy in miles per gallon
Suppose that a commuter drives 24 miles back and forth to work 20 days each month and achieves a fuel economy of 30 mpg. How many gallons of gasoline are used?