Question

va rog am nevoie urgent dau coroana pls​

Answer 1

Răspuns:

ms1=400g

c1=10%

ms2=100g

c2=20%

ms f=?

c f=?

c1/100=md1/ms1

10/100=md1/400

md1=400•10/100

md1=40g

c2/100=md2/ms2

20/100=md2/100

md2=100•20/100

md2=20g

ms f=ms1+ms2

ms f=400+100

ms f=500g

md f=md1+md2

md f=40+20

md f=60g

c f/100=md f/ms f

c f/100=60/500

c f=100•60/500

c f=12%