The amount of gasoline used by a car varies jointly as the distance travelled and the square root of the speed. Supposed a car used 25 liters on a 100 kilometer trip at 100 km/hr. About how many liters will it use on a 192 kilometer trip at 64 km/hr?
a. what kind of variation presented in the given problem? b. what is the constant variation? c. write the mathematical equation describing the variation statemenr in the problem?
