Question

Determinayi raportul a pe b, unde a diferit de 0 si b diferit de 0 daca:
a) 0,2×a=0,8×b
b) b=o,(3)×a

Answer 1

0,2 × a = 0,8 × b

2/10 × a = 8/10 × b

1/5 × a = 4/5 × b

a/b = (4/5) / (1/5) = 4/5 × 5/1 = 4/1 = 4

b = 0,(3) × a = 3/9 × a = 1/3 × a = a/3

a = 3b

a/b = 3b/b = 3