Question

Va rogggg e uregenttttt dau coroana și puncte multeeee va rogggg !!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Răspuns:

2) a+b+c=2,7

2,7/3=0,9

3) (a+b+c+d) /4=0,5

0,5*4=2

4) (11,7+22,5+17,3+15,4)/4=66,9/4=16,73

(66,9+7,5)/5=74,4/5=14,88

16,73-14,88=1,85

5) (a+b)/2= 34

34*2=68

68-49=19

6)

a) x=0,2:4+4,5=4,55

y= 3,8*12,5:0,8=47,5:0,8=59,38

(x+y)/2=(4,55+59,38)/2=31,97

b) x= 61,19

y=0,01+1,44:1,2=0,01+1,2=1,21

z=1,91*1,2:0,1=2,29:0,1=22,86

(x+y+z)/3=(61,19+1,21+22,86)/3=28,42

7) (a+b+c) /3=144

(a+b)/2=78,5

a+b=78,5*2=157

a+b+c=144*3=432

c=432-157=275

8) (a+b+c+d) /4=3,2

a+b+c+d=3,2*4=12,8

a+b+c=12,8-d=12,8-3,5=9,3

9) (a+b+c) /3=102

a+b+c=102*3=306

Nr. sunt: 100, 102, 104