Question

Aflati doua numere care au raportul 0,5 su suma 75.Va rog,este urgent!!

Answer 1

a+b = 75
a:b= 0,5
a= 0,5 b

0,5b+b=75
1,5 b = 75
b= 75 :1,5 
b= 50 
a= 0,5 x 50 = 25 

25+50=75
25:50 =0,5 

Answer 2

$a + b = 75 \frac{a}{b} = 0,5 = \frac{5}{10}^\cancel{(5} = \frac{1}{2} = \ \textgreater \ b = 2a = \ \textgreater \ a + 2a = 75 = \ \textgreater \ 3a = 75 = \ \textgreater \ a = 75 : 3 = \ \textgreater \ \boxed{a = 25} = \ \textgreater \ b = 75 - a = \ \textgreater \ b = 75 - 25 = \ \textgreater \ \boxed{b = 50}$ $Black.Book$