Question

Dau coroana
Va rogggg

Answer 1

Răspuns:

1.

md=20g

ms=300g

C=?

C=md×100/ms=20×100/300=6,67&

2.

md=60

C=15%

ms=?

ms=md×100/C=60×100/15=400g

3.

md=80g

C=5%

ms=?

ms=md×100/C=80×100/5=1600g

4.

md=40

mapa=210g

ms=md+mapa=2410+40=250g

C=md×100/ms=40×100/250=16%

5.

md=17g

C=5%

ms=?

ms=md×100/C=17×100/5=340g

6.

ms=280g

C=2%

md=?

md=C×ms/100=280×2/100=5,6g

Explicație: