Odpowiedź:
[tex]a) (-100)*\frac{8}{25} = -4*8 = -32[/tex]
[tex]b) 1\frac{2}{3} *(-\frac{6}{25} ) = \frac{5}{3} *(-\frac{6}{25} )=-\frac{2}{5}[/tex]
[tex]c) (-2\frac{2}{5} )*(-3\frac{3}{4} ) = (-\frac{12}{5} )*(-\frac{15}{4} ) = 3*3 = 9[/tex]
[tex]d) (-9,45)*0,28 = -(9,45*0,28) = -2,646[/tex]
[tex]e) 0,04*(-0,27) = -(0,04*0,27) = -0,0108[/tex]
[tex]f)(-3,6)*\frac{4}{9} = (-\frac{18}{5} )*\frac{4}{9} = -\frac{2}{5} *4 = -\frac{8}{5}[/tex]
[tex]g)(-2,1)*(-4\frac{2}{7} ) = (-\frac{21}{10} )*(\frac{30}{7} ) = 3*3 = 9[/tex]
[tex]h) -\frac{7}{8} :(-5,6) = -\frac{7}{8} : (-\frac{28}{5}) = \frac{7}{8} *\frac{5}{28} = \frac{1}{8} *\frac{5}{4} = \frac{5}{32}[/tex]
[tex]i) \frac{9}{10} : (-\frac{3}{4} )= -\frac{9}{10} *\frac{4}{3} = -\frac{3}{5} *2 = -\frac{6}{5}[/tex]
[tex]j)(-1\frac{1}{2} ):(-0,06) = (-\frac{3}{2} ):(-\frac{3}{50} ) = \frac{3}{2} *\frac{50}{3} = 25[/tex]
[tex]k) (-2\frac{2}{3} ):12= (-\frac{8}{3} ):12 = -\frac{8}{3} *\frac{1}{12} = -\frac{2}{3} *\frac{1}{3}= -\frac{2}{9}[/tex]
[tex]l) \frac{2}{3} :(-6) = -\frac{2}{3} *\frac{1}{6} = -\frac{1}{3} *\frac{1}{3}= -\frac{1}{9}[/tex]
[tex]m) (-0,45):1\frac{4}{5} = (-\frac{9}{20} ):\frac{9}{5} = -\frac{9}{20} *\frac{5}{9} = -\frac{1}{4}[/tex]
[tex]n) (-2,75):(-2,2) = 2,75:2,2 = 1,25[/tex]
[tex]o)(-3,5):(-1\frac{2}{5}) = (-\frac{7}{2}):(-\frac{7}{5} ) = \frac{7}{2}*\frac{5}{7} = \frac{1}{2}*5 = \frac{5}{2}[/tex]
Ujemne są A i E,
Szczegółowe wyjaśnienie:
