Car costs $14,500 and has a rated mileage of 28 miles/gallon. another car costs $21,700 and has a rated mileage of 19 kilometers/liter. the cost of gasoline is $1.25/gal. How many miles do you have to drive for the lower fuel consumption of the second car to compensate for the higher cost of this car?
thanks a lot
it's driving me crazy
What you need to do is write a function to compare the amount of miles gone ( ) to the amount of money paid ( ) for both cars.
For the first car, you would spend
or just 5 dollars for every 112 miles
So the equation for the cost of the first car is:
Now your job is to find the equation of the second car. And then see when they intersect...