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Afla numerele necunoscute:
x:30=6;
420:y=60;
500:2=z-120;
700=100+t+t


Răspuns :

x: 30 = 6
x = 30 * 6
x = 180
420 : y = 60
420 = 60y
y = 420 : 60
y = 7
500 : 2 = z - 120
250 + 120 = z
z = 370
700 - 100 = 2t
2t = 600
t = 600 : 2
t = 300
x=30:6=5
y=420:6=70
z=250+120=270
t+t=(700-100):2=300
t+t=600