Question

as vrea raspuns rapid si simplu la asta: tot ce se vede as vrea rezolvare pe rand

Answer 1

Răspuns

9.

/-------/                                 s=631

/-------/-------/-------/_7_/

631-7=624

624:4=156 primul nr

156x3+7=468+7=474  al doilea

10

b/-------/                              total 30-2

f/-------/-------/-------/

28:4=7baieti

7+2=9 baieti

7x3=21 fete

11

3x5+2x3+2x12+3x6=15+6+24+18=63

12

94+x=100

x=100-94

x=6

y:17=6

y=17x6

y=102

A=43+3x+3y=43+3*6+3*102=43+18+306= 367

56-28:(x+2)=54

28:(x+2)=56-54

x+2=28:2

x=14-2

x=12

(38+y)*3=168

38+y=168:3

y=56-38

y=18

B=[152-5(x+y)]

=[152-5(12+18)]=152-5*30=152-150=2

28*(x+235)=6860

x+235=6860:28

x=245-235=10

y-37=13

y=13+37

y=50

C=300-(5*50-3*10)=300-(250-30)=300-220=80

y=130:3

Explicație pas cu pas: