Question

ofer coroana! URGENT​

Answer 1

$\displaystyle a)~\frac{x}{27} =\frac{7}{9} \Rightarrow x\cdot 9=7 \cdot 27\Rightarrow 9x=189 \Rightarrow x=\frac{189}{9} \Rightarrow x=21\\\\ b)~\frac{21}{25} =\frac{14}{x} \Rightarrow 21 \cdot x=14 \cdot 25 \Rightarrow 21x=350 \Rightarrow x=\frac{350}{21}\Rightarrow x=\frac{50}{3}$