suma a doua numere este 83.Daca impartim cele 2 numere obtinem catul 3 si restul 7.Va rog prin metoda grafica

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Find the maximum value of p= 4x + 5y subject to the following constraints :