Question

Sabendo que x + y = 42, determine x e y na proporção:
$\frac{x}{y} = \frac{5}{9}$

Answer 1

X+Y=42
X/Y=5/9

X=42-Y

42-Y/Y=5/9

5Y=378-9Y
14Y=378
Y=378/14
Y=27

SE X+Y=42
ENTAO X+27=42

X=42-27
X=15

(15,27)