Final answer:
Mr. Riddick saved $0.049 per mile on gas before running over a huge object, taking the difference between the cost per mile before and after the incident (rounded to the nearest cent).
Step-by-step explanation:
To calculate the amount of money Mr. Riddick saved per mile before running over the huge object, we first need to determine the cost per mile for both scenarios and then calculate the difference.
Initial scenario:
Before running over the object, Mr. Riddick's car used 7 gallons of gasoline to travel 260 miles.
Cost efficiency: Cost per gallon / miles per gallon
Cost per gallon: $3.25
Miles per gallon: 260 miles / 7 gallons
Cost per mile initial: $3.25 / (260 miles / 7 gallons) = $3.25 / (37.142857143 miles/gallon) = $0.0874 per mile
After incident:
After the incident, the car traveled 190 miles on 8 gallons of gas.
Miles per gallon: 190 miles / 8 gallons
Cost per mile after incident: $3.25 / (190 miles / 8 gallons) = $3.25 / (23.75 miles/gallon) = $0.1368 per mile
Money saved per mile before the incident:
Mileage cost difference: Cost per mile after incident - Cost per mile initial
Mileage cost difference: $0.1368 per mile - $0.0874 per mile = $0.0494 per mile
Mr. Riddick saved $0.049 per mile before running over the huge object (rounded to the nearest cent).