Question

Va rog mult ex 26 urgent!!!! DAU COROANA!!!!

Answer 1

Metoda: a/b=c/d=a×d=c×d

==>1) 2/3=a/6==>2×6=3×a

12=3×a

12:3=a

4=a

2)b/5=28/10

10b=140

b=14

3)4/c=2/9=4×9=2c

36=2c

18=c

4)12/5=24/d

==> 12d=24×5

12d=120

d=10

Answer 2

Răspuns:

2/3 =a/6

3a=2×6

a=12:3

a=4

___________

b/5=28/10

10b=5×28

b=140:10

b=14

_________

4/c=2/9

2c=9×4

c=36:2

c=18

_________

12/5=24/d

12d=5×24

d=120:12

d=10