Question

Numerele a si b sunt invers proportionale cu 2 si 3. Daca 6a+9b=36 ,determinati numerele.

Answer 1

$\frac{a}{b} = \frac{3}{2}$ ==> 2a=3b = x
6a+9b=36
3(2a+3b)=36
3×2x=36
2x=12
x=6
2a=6 ==> a=3
3b=6 ==> b=2