Question

2. Sabendo que x + y = 42, determine x e y na propor x/y= 5/9​

Answer 1

$\frac{x}{y} =\frac{5}{9} \\\\y=\frac{9x}{5}$

$x+\frac{9x}{5} =42\\\\\frac{14x}{5} =42\\\\14x=210\\x=15\\y=27$