Mr. chavez's third-graders go to gym class at 11: 15. students rotate through three activities for 8 minute each. lunch begins at 12: 00. how many minutes are left from the end of the gym activities until lunch begins?

21 minutes is the answer because there's 45 minutes between 11: 15 and 12:00 and the 3 activities for eight minutes (8 x 3 = 24) so 45 - 24 = 21 minutes

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.

mean, 40.6

step-by-step explanation: