Question

1.Daca 2/b = 3/5 si a+b =16 aflati numerele a si b.
2.Daca x/y=0,(6) aflati x/x+y.
3.Cunoscand a/b=0,(27), sa se determine 1+3b-11a.
4.DAca 7(a+4)=a(b+14), Aflati a/b.
5.Daca a+b/b=5/3 Aflati a/b


Ba Rogg am nevoie rpd.. app de ex 3/4 e 3 supra 4..

Answer 1

1.  $\frac{2}{b} = \frac{3}{5} =\ \textgreater \ 10=3b =\ \textgreater \ b= \frac{3}{10}$
 a+$\frac{3}{10} = 16$
 10a + 3 = 160
 10a = 157  => a= 15,7

2. $\frac{x}{y} = 0.(6) =\ \textgreater \ 0,(6)y=x =\ \textgreater \ \frac{0,(6)y}{0,(6)y}+y = 1+y$