Odpowiedź:
Zad 1
a) [tex]\frac{7}{3}[/tex] x [tex]\frac{33}{30}[/tex] - [tex]\frac{4}{3}[/tex] = [tex]\frac{231}{90}[/tex] - [tex]\frac{120}{90}[/tex] = [tex]\frac{111}{90}[/tex]
b) -[tex]\frac{111}{90}[/tex]
c) [tex]\frac{90}{111}[/tex]
Zad 2
a)[tex]\sqrt \frac{9}{64}[/tex] = [tex]\frac{3}{8}[/tex]
Zad 3
[tex]5^ \frac{1}{4}[/tex] x 5 x [tex]5^ \frac{4}{3}[/tex] = [tex]5^\frac{5}{4}[/tex] x [tex]5^\frac{4}{3}[/tex] = [tex]5^\frac{15}{12}[/tex] x [tex]5^\frac{16}{12}[/tex] = [tex]5^\frac{31}{12}[/tex]
Zad 4
3000 x 0.04 = 120
120 x 0.19 = 22.8
Odp: zapłaci 22.8 zł podatku dochodowego
Pozdrawiam BetterBanRyze
