Odpowiedź:
zad. 2
[tex] - 1 \frac{4}{5} = - \frac{9}{5} [/tex]
odwrotność
[tex] - \frac{5}{9} [/tex]
odp. A
zad. 3
[tex] - \frac{3}{7} \: \: \: \: odwrotnosc \: \: \: - \frac{7}{3} = - 2 \frac{1}{3} [/tex]
odp. B
zad. 4
[tex]1 \frac{2}{3} = \frac{5}{3} [/tex]
l. przeciwna
[tex] - \frac{5}{3} [/tex]
odp. B
zad. 5
[tex]a)0.64 = \frac{64}{100} = \frac{16}{25} \\ b)3.65 = \frac{365}{100} = \frac{73}{20} \\ c)0.148 = \frac{148}{1000} = \frac{37}{250} \\ d)9.0525 = \frac{90525}{10000} = \frac{3621}{400} [/tex]
zad. 6
[tex]a) \frac{14}{25} = \frac{56}{100} = 0.56 \\ b) \frac{1}{20} = \frac{5}{100} = 0.05 \\ c)4 \frac{13}{125} = 4 \frac{104}{1000} = 4.104[/tex]
[tex]d)7 \frac{3}{40} = 7 \frac{75}{1000} = 7.075 [/tex]
zad. 7
[tex] \frac{201}{200} = 1.005[/tex]
odp. C
zad. 8
odp. B
