Question

restabiliti sirul de rapoarte egale:

Answer 1

2/5=x/10 => 20=5x => x=4
4/10=6/x => 4x=60 => x=15
6/15=x/25 => 15x=6*25 => x=10
10/25=18/x =>10x=25*18 =>x=45

9/x=18/8 => 18x=9*8 => x=4
18/8=x/2 => 8x=18*2 => x=9/2=4,5
4,5/2=36/x => 4,5x=2*36 => x=16
36/16=x/20 => 16x=20*36 => x=45