Question

va rog !!!! dau coroana ​

Answer 1

S2

c% = mdx100/ms

= 30x100/600 = 5%

m.apa = ms-md = 600-30 = 570 g

S3

ms=md+m.apa = md+270

25 = 100md/(md+270)

=> 25md + 6750 = 100 md

=> md = 90 g

=> ms = 90+270 = 360 g

S4

ms = mdx100/c%

= 90x100/30 = 300g

=> m.apa = ms-md = 300-90 = 210g

S5

ms=270+30 = 300 g

=> c% = 30x100/300 = 10%

S6

idem S4

S7

md = ms-m.apa = 800-640 = 160g

=> c% = 160x100/800 = 20%