If “x” stands for the total number of students in the school and “y” stands for the number of 6th Graders,
write an equation to represent this situation.

1. How many 6th Graders are there if the school
has 80 students?

2,How many 6th Graders are there if the school
has 25 students?

3. How many total students are in the school
if 50 of them are 6th Graders?

i believe 2 is

Step-by-step explanation:

12/11c

or

12

c

11

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.