Question

срочно!!!!!!Дам 25 балов ​

Answer 1

$\displaystyle\bf\\\frac{x-5}{y+2} :\frac{2x-10}{3y+6}=\frac{x-5}{y+2} \cdot\frac{3y+6}{2x-10} =\frac{x-5}{y+2} \cdot\frac{3\cdot(y+2)}{2\cdot(x-5)} =\\\\\\=\frac{3}{2} =1,5$