Question

Exercițiul 2 Cârciog mult uitați va pe poza este urgent ! Dau coroana si multumesc

Answer 1

2)
a) 1/3 /2=6/x =>
1/3:2/1=6/x
1/3 ×1/2=6/x
1/6=6:x
x=6/1:1/6
x=6/1×6/1
x=36

proba
1/6=6/36 simplificat cu 6
1/6=1/6 ( Adevarat )

b)
1/0,6 /0,2=x/0,6
1/0,6 :0,2/1=x :0,6
1/0,6 ×1/0,2=x :0,6
1/0,12=x:0,6
x=0,6/1 × 1/0,12
x=0,6/0,12 simplificat cu 0,6
x=1/0,2

c)
1/2+1/2 :2 totul supra/x=6/7
1/2+1/2×2/1 totul supra/x=6/7
1/2+2/2 totul supra/x=6/7
3/2 totulsupra/x=6/7
3/2 :x/1 =6/7
3/2 ×1/x=6/7
3/2x=6/7
3 : 2x=6/7
2x=3/1 :6/7
2x=3/1 × 7/6
2x=21/6 simplificat cu 3
2x=7/2
x=7/2 :2/1
x=7/2 × 1/2
x=7/4

d)
2/5totul supra/x=1/4 totul supra/10
2/5 :x/1=1/4 :10/1
2/5 × 1/x=1/4 × 1/10
2/5x=1/40
2 : 5x=1/40
5x= 2/1 :1/40
5x=2/1 × 40/1
5x=80
x=80:5
x=16