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calculeaza prin necunoscute

Calculeaza Prin Necunoscute class=

Răspuns :

850 ml

50 ml + 800 ml = 850 ml

x + 120 ml = 850 ml
x = 850 ml - 120 ml
x = 730 ml
P. 730 ml + 120 ml = 850 ml

250 ml + x = 850 ml
x = 850 ml - 250 ml
x = 600 ml
P. 250 ml + 600 ml = 850 ml

x + y = 850 ml
x = 150 ml
y = 700 ml
P. 150 ml + 700 ml = 850 ml