Question

Ajutați mă vă rog mult!!!!!​

Answer 1

Răspuns:

(6/12)⁽²=1/2=0,5

3/8:20=3/8×1/20=3/160=0,01875

3,5/5=0,7

____________

x/2=3/1=>x=2×3=>x=6

8/x=2/5=>2x=5×8=>x=40:2=>x=20

5/7=10/x=>5x=10×7=>x=70:5=>x=14

___________

a/2=b/4=c/7=k

a=2k

b=4k

c=7k

a+b+c=104

2k+4k+7k=104=>k=104:13=>k=8

a=2×8=16

b=8×4=32

c=7×8=56

Answer 2

Răspuns:

Explicație pas cu pas: