Question

Rezolva problemele la matematica

Answer 1

1.
c= cremene
s= scoici
m=melci
c+ s+ m = 3350
c+ s=1510
s+m = 2190
c= 3340- (s+m)
c= 1160
s = 1510- c
s= 350
m = 2190 - s
m= 1840
Verificare : 1160+1840+350 = 3350

2
f= femei
b= bărbați
c= copii
f+b+c = 178
f+b = 105
f+c =134
c= 178-(f+b)
c= 178-105
c= 73
f= 134- c
f= 61
b= 105-f
b= 44
Verificare : 44+61+73 = 178