Question

va rog ajutatima urgent dau coroana

Answer 1

1 .nu stiu
2.a) x=1
b) x=0.....9
c)×=4
3.a-11
b-7
c-5
d-91
4. 3a-8=a
a+8=30
a=4
5. A +X =29
a÷x=3 r 1
a=3x+1
3x+1+x= 29/-1
4x=28
x=28:4
x=7
a=3×7+1
a = 22
6.
27-23=4
B |----| }
F |----|+4| } 78
78-4=74
74:2=37 B
37+4=41 F

7. 7 b. de 10 lei si 5 de 50 lei
8.

Answer 2

Răspuns

a) A; b)F c)A ;d) A ;e) A  f)F ;g) A h)A  2) a) 1,4,7,  b)0,1,2,3,4,5,6,7,8,9 c)4

3) a)121div cu 11 b)91 div cu 91 ;c)10ⁿ+2 div cu3   4)  x numarul 3x-x=8 ;2x=8;x=4  5) A+B=29 ;a:b=3 rest 1 ;a=3b+1 ;3b+1+b=29 ;4b=28 ;b=7 a=3.7+1=22  ANA =27   ALEX=7