Question

Doua numere rationale au media aritmetica 14,5 iar diferenta lor este 3,2. Aflati cele doua numere.

Answer 1

(a+b):2=14,5/x2=>a+b=29 a-b=3,2=>a=3,2+b=>3,2+b+b=29/-3,2=>2xb=25,8/:2=>b=14,9=>a=14,1