Posted by **Anonymous** on Tuesday, November 22, 2011 at 4:18pm.

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?

## Answer this Question

## Related Questions

- Math - A small truck is to be driven 300 miles on a freeway at a constant speed ...
- algebra - The cost, c(x) in dollars in per hour of running a certain fishing ...
- math - (TRANSPORTATION COST) A truck is hired to transport goods from a factory ...
- Calculus/ Optimization - A truck driver, on assignment from the owner of the ...
- Math/ Calculus Please HELP!!! - A truck driver, on assignment from the owner of ...
- math - the cost per hour of running an assembly line in a manufacturing plant is...
- Rational Functions Word Problem - A car travels at a constant speed and burns g(...
- math - a car travels at a constants speed and uses G(x) litres of gas per ...
- calculus - 16. Given the following information, determine the constant speed, ...
- calculus - 16. Given the following information, determine the constant speed, ...

More Related Questions