The sales tax in kadisha's state is 5%. kadisha says she computes a 15% tip by multiplying the tax shown on her bill by 3. for a bill with a tax charge of $.38, kadisha's tip is $.38 times 3 = $1.14. why does kadisha's method work?

Explanation:

Kadisha's method works because 15% is 3 times 5%, and both amounts are computed on the amount of the bill before tax is added.

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.

it is not that hard all u have to do is plot the graph

step-by-step explanation: