Maureen bought a coat. she was excited because it was on sale, so she paid $15.25 less than the original price. she paid $48.75 for the coat. write and solve an equation to determine the original price. let p represent the original price. it's getting cold outside! the temperature dropped steadily at a rate of about 4 degrees every hour. if the temperature dropped a total of 22 degrees, how many hours have passed? let h represent the number of hours

$33.50 for coat, 5.5 hours

Step-by-step explanation:

For the coat, since it was on sale, then it would be $48.75-$15.25=p=$33.50.

If the temperature drops 4 degrees every hour, if t dropped 22 degrees, then you would do 22 divided by 4, to find out how many hours it had dropped for. 22 divided by 4=h=5.5 or 5 1/2.

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.