Question

Primele 6 exerciții. Dau coroana.

Answer 1

1)2,3,5,7
2)
[tex]\frac{80}{100},\frac{120}{140},\frac{240}{200},\frac{140}{180}\\ 3) \frac{2}{3}, \frac{4}{6},\frac{7}{3},\frac{4}{7}\\ 4) 150=2\cdot 3\cdot5^2\\ 48=2^3\cdot3\\ 5)a)x=50\\ b)x=214\\ c)x=238\\ d)30\\ e)9\\ 6) a)\frac{176}{7}\\ b)-\frac{177}{15}\\ c)\frac{1}{2}\\ d)27+16-\frac{1}{4}=\frac{171}{4} [/tex]