Question

Daca a supra b = 6 supra 5 si 2a+b=34 ,aflati numerele a si b.​

Answer 1

a/b = 6/5 => 5a = 6b => b = 5a/6

2a + b = 34

Înlocuim in ultima relatie pe b = 5a/6:

2a + 5a/6 = 34

12a/6 + 5a/6 = 34

17a/6 = 34

17a = 34×6 = 204

a = 204/17

a = 12

Atunci b = 5a/6 = 5×12/6 = 5×2/1

b = 10

Answer 2

Răspuns:

a/b=6/5 => a/6=b/5

a×6=b×5 => 6K=a 5K=b

12K+5K=34 => 17K=34

K=2

a=2×6=12

b=2×5=10