Question

Rezolvați problemele ,repede, dau funda!!!

Answer 1

Răspuns:

1.

md=20g

mapa 180g

ms=20+180=200g

C=20×100/200=20%

2.

ms=400g

C=15%

md=?

md=C×ms/100=15×400/100=60g

3.

C=30%

md=50g

ms=?

mapa=?

ms=50×100/30=166,67g

mapa=166,67-50=116 67g

Answer 2

Răspuns:

Explicație:

1.

md= 20g

mapa= 180g

c

c= md . 100 : ms

ms= md + mapa

ms= 20 + 180=200g sol.

c= 20 .100 : 200=10%

2.

ms=400g

c=15%

md

md= c .ms : 100

md=15 . 400 : 100= 60g

3.

c=30%

md=50g

mapa

ms= md.100 : c

ms= 50 . 100 : 30= 166,6 g sol.