Question

determine o valor de x+y​

Answer 1

Resposta:

$\frac{10}{10}=\frac{10+x}{x}=\frac{y+18}{18}$

$\frac{15}{10}=\frac{10+x}{x}$

$15x=100+10x$

$x=20$

$\frac{15}{10}=\frac{y+18}{18}$

$18.15=10y+180$

$10y=270-180$

$y=90/10$

$y=9$

$x+y=20+9$

$x+y=29$

bons estudos!