Respuestas

  • Usuario de Brainly
2013-04-09T03:12:07+02:00

A...........3

----- = ------→ A * 4 = 3B → A = 3B/4

B...........4

 

B............2

-----= -------→ B*5 = C * 2 → C= 5B/2

C ..........5

 

entonces

A + B + C = 51

3B/4 + B + 5B/2 = 51................sacamos comun denominador

3B/4 + 4B/4 + 10B/4 = 51

17B/4 = 51

B = 51: 17/4

B = 12

 

A = 9.................C = 30

 

espero que te sirva, salu2!!!!