Choose a number x at random from the set of numbers {1, 2, 3, 4, 5}. now choose a number at random from the subset no larger than x, that is, from {1, . . ,x}. call this second number y.

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.

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

19

step-by-step explanation: