Question

media aritmetica a doua numere rationale este 28 aflati numerele stiind ca sunt direct proportionale cu 3 si 4

Answer 1

[tex]\frac{a+b}{2}=28\\ a+b=56\\ \frac{a}{3}=\frac{b}{4}=k\\ a=3k,b=4k\\ 3k+4k=56\\ 7k=56\\ k=8\\a=24\\b=32[/tex]