Question

Va rog ajutatima!!!
Multumesc anticipat!!!

Answer 1

Răspuns:

Explicație:

1.

md=40g

mapa= 200g

c=?

ms= md + mapa

ms= 40 + 200=240g

c= md.100 : ms

c= 40 .100 : 240= 16,6 %

2.

ms=200 g

c1=15%

md adaugat=50g

c2

-se afla md din prima sol. md1

md1= c1 . ms : 100

md1= 15 .200 : 100= 30g sare

-se afla md final

md f= md : md adaugat

md f= 30 + 50= 80 g

c2= md f .100 : ms

c2= 80 . 100 : 200=40%

3.

ms1=50g

c1=10%

ms2=200g

c2=30%

c final

-se afla md1 si md2 din cele doua sol.

md1= c1.ms1 : 100

md1= 10. 50 : 100= 5g

md2= c2. ms2 : 100

md2= 30 . 200 : 100=60g

-se afla md final

md f= 5 + 60=65 g

-se afla ms f

ms f= 50 + 200= 250 g

-se afla c f

cf= mdf .100 : msf

cf=65.100 : 250=26%