Question

2 !! Repede cu metoda comparatiei !! Dau 20. de puncte si coroana la cel care raspunde repede si corect !!!

Am nevoie ✅✅✅

Answer 1

8 bratari...6 siraguri....330 margelute / ×2
10 bratari....12 siraguri....570 margelute
.................................................................................
16 bratari...12 siraguri....660 margelute
10 bratari....12 siraguri....570 margelute

660 - 570 = 90 margelute
16 - 10 = 6 bratari

Aflam cate margelute s-au folosit pt. 1 bratara:
90 : 6 = 15
Aflam cate margelute s-au folosit pt. 1 sireag:
(330 - 8 x 15) : 6 = (330 - 130) : 6 = 210 : 6 = 35

Verificare:
8 × 15 + 6 × 35 = 120 + 210 = 330 margelute
10 × 15 + 12 x 35 = 150 + 420 = 570 margelute