Asked by Anonymous
The cost of gasoline per hour for running a certain car is directly proportional to the square of the speed. I f the cost is $2.40 per hour for a speed of 40 km/h, what is the cost per hour for a speed of 60 km/h?
Answers
Answered by
drwls
Multiply the 40 mph cost (2.40/hr) by (60/40)^2.
The cost per mile will decrease by a smaller factor (3/2), since the car goes farther per mile.
The cost per mile will decrease by a smaller factor (3/2), since the car goes farther per mile.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.