Ser Wa
Carla and Vicki left the house at the same time
and began traveling down the same road in the
same direction. Carla drove at a speed of 60
mph and Vicki at a speed of 65 mph. How many
hours was it before Vicki was 20 miles ahead of
Carla?

how do you find themoney decrease R1400 in the ratio of 7:3

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.