Question

determine os dois numeros cuja razao e 2 sobre 5 e que somados totaliza 440.

Answer 1

x/y=2/5 => x=2y/5

x+y=440

(2y/5) + y= 440

7y/5=440
y=440x5/7
y=2200/7

x=2x(2200/7)/5
x=880/7

resposta: x=880/7 e y=2200/7