Witaj :)
magazyn "Instalator"
[tex]Cena\ brutto =14,70zl\\VAT=5\%[/tex]
Cena netto:
[tex]N+0,05N=14,70\\\\1,05N=14,70\ /:1,05\\\\N=\frac{14,70}{1,05}\\\\\boxed{N= 14,00\ [zl]}[/tex]
gazeta "Codzienna"
[tex]Cena\ brutto =2,70zl\\VAT=8\%[/tex]
Cena netto:
[tex]N+0,08N=2,70\\\\1,08N=2,70\ /:1,08\\\\N=\frac{2,70}{1,08}\\\\\boxed{N= 2,50\ [zl]}[/tex]
gazeta "Reklamy"
[tex]Cena\ brutto =3,69zl\\VAT=23\%[/tex]
Cena netto:
[tex]N+0,23N=3,69\\\\1,23N=3,69\ /:1,23\\\\N=\frac{3,69}{1,23}\\\\\boxed{N= 3,00\ [zl]}[/tex]