Question

34 35 36 va rogggg dau coroana

Answer 1

34)
a+b+c=46
b=a+3
c=a+b
c=a+a+3=2a+3

a+a+3+2a+3=46
4a+6=46
4a=46-6
4a=40
a=40:4
a=10
b=10+3=13
c=2x10+3=20+3=23
Nr.sunt:
a=10
b=13
c=23

35)
a+b+c=28
a=b-7
a=c+3
b=a+7
c=a-3
a+a+7+a-3=28
3a+4=28
3a=28-4
3a=24
a=24:3
a=8 pahare pe primul raft
b=8+7=15 pahare pe al doilea raft
c=8-3=5 pahare pe al treilea raft

36)
a+b+c=33
b=a-2
b=c+2
a=b+2
c=b-2

b+2+b+b-2=33
3b=33
b=33:3
b=11 baloane are al doilea copil

a=11+2=13 baloane are primul copil
c=11-2=9 baloane are al treilea copil