Răspuns: y = 45
Explicație pas cu pas:
[tex]\large \bf 75= \sqrt{y \cdot 125} ~~~\bigg|^{2}\implies 75^{2} = y \cdot 125\implies[/tex]
[tex]\large \bf 5625 = y \cdot 125~~~\bigg|:125\implies \boxed{\bf y = 45}[/tex]
#copaceibrainly
[tex]\it 75 = \sqrt y\cdot125 \Rightarrow \sqrt y=\dfrac{\ 75^{(25}}{125} \Rightarrow \sqrt y=\dfrac{3}{5} \Rightarrow \Big(\sqrt y\Big)^2= \Big(\dfrac{3}{5}\Big)^2 \Rightarrow y=\dfrac{9}{25}[/tex]
