Final answer:
The car can travel 525 miles with 15 gallons of gas by multiplying the number of gallons (15) by the miles per gallon (35).
Step-by-step explanation:
To determine how far a car can travel with 15 gallons of gas when it drives 35 miles per gallon, we simply multiply the number of gallons by the miles per gallon. The car's fuel efficiency is 1/35 of a gallon per mile, which means that for each mile driven, the car uses 1/35th of a gallon of gas. So, the calculation for the total distance on 15 gallons is:
Distance = Number of Gallons × Miles per Gallon
Distance = 15 gallons × 35 miles/gallon
Distance = 525 miles
The car can travel 525 miles on 15 gallons of gasoline. This assumes there are no significant changes in driving conditions or the vehicle's fuel economy during the trip.