Given x varies inversely with y and xy=2, what is the value of x when y=1?

x = 2

Step-by-step explanation:

Given that x varies inversely as y then the equation relating them is

x = ← k is the constant of variation

To find k use the condition xy = 2, thus

k = xy = 2

x = ← equation of variation

When y = 1, then

x = = 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.

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values