Am nevoie grav
si sa fie corect
ofer 30p
Răspunsuri la întrebare
Răspuns:
Explicație:
1.
a. md=10g ms=10 +200=210g
mapa=200g c=10 .100: 210=4,76%
b. md=15g ms= 15 + 150=165g
mapa= 150g c=15 .100 : 165=9,09%
c. md=30g ms=30 + 340=370g
mapa=340g c=30.100: 370=8,11%
2.
1. 700g md= 10.700:100=70g ma=700-70=630g c=10%
2. 150g 50 ma=150-50=100g c=50.100:150=33,33%
3. 240g 20g ma=220g c=20.100:240=8,33%
4. 261,36g 31,36g ma=230g c=12%
c=md.100: ms
12= md.100 :(md + 230)
12.(md+230) = 100.md
12md + 2760=100md
100md - 12md=2760
88md=2760
md= 2760: 88=31,36g
ms= 31,36 +230=261,36g