Question

ajutatima va rog frumos ex. 5. a. b. ex. 6. a

Answer 1

EX 5

a)I+R=24                     
R=3I   

I-----I  ION
I-----I-----I-----I  RADU

1)cati pesti a prins Ion?
I+3I=24
4I=24
I=24:4
I=6 pesti
2)cati pesti a prins Radu?
3x6=18 pesti

verificare :
18+6=24

b)G=R:5    deci R=5G

R+G=36

I-----I gaste
I-----I-----I-----I-----I-----I rate

1)cate gaste sunt?
G+5G=36
6G=36
G=36:6
G=6
2)cate rate sunt?
5x6=30

verificare:

30+6=36

6)
a)Un catel si o pisica consuma intr-o luna 12 kg hrana uscata.
Cat consuma fiecare ,daca pisica consuma de 5 ori mai putin decat catelul?

1)cat consuma pisica?
P+5P=12
6P=12
P=12:6
P=2kg
2)cat consuma catelul?
2x5=10 kg


                  
             

Answer 2

5a)
/________/ Ion
/________//________//________/Radu
adunam
/________//________//________//________/=suma=24
4/________/=24⇒/________/=24:4=6
/________/=6 pesti Ion
/________//________//________/=3×/________/=3×6=18 pesti Radu

b)/________/gaste
/________//________//________//________//________/ rate
adunam
6/________/=36 (capete)
/________/=36:6=6
/________/=gaste=6
rate=5/________/=5×6=30 rate

6.a)Un catel si o pisica consuma intr-o luna 12 kg hrana uscata.
Cat consuma fiecare, daca pisica consuma de 5 ori mai putin decat catelul?
/___________/=pisica
/___________//___________//___________//___________//___________/= catelul
/___________//___________//___________//___________//___________//___________/=12 kg
1)cat consuma pisica?
6/___________/=12kg, /___________/=12:6=2 kg

2)cat consuma catelul?
5/___________/=2×5=10 kg