Odpowiedź:
a ) [tex]\frac{10 - 8}{10} = \frac{2}{10} = 0,20 = 20[/tex] %
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b ) [tex]\frac{22 - 7 \frac{1}{3} }{7 \frac{1}{3} } = ( \frac{66}{3} - \frac{22}{3} ) : \frac{22}{3} =\frac{44}{3} *\frac{3}{22} = 2 = 200[/tex] %
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c ) ( 2,4 + 1,6 )² = 4² = 16
[tex]\frac{21 - 16}{16} = \frac{5}{16} = 5 : 16 = 0,3125 = 31,25[/tex] %
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Szczegółowe wyjaśnienie:
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Odpowiedź:
a ) [tex]\frac{10 - 8}{10} = \frac{2}{10} = 0,20 = 20[/tex] %
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b ) [tex]\frac{22 - 7 \frac{1}{3} }{7 \frac{1}{3} } = ( \frac{66}{3} - \frac{22}{3} ) : \frac{22}{3} =\frac{44}{3} *\frac{3}{22} = 2 = 200[/tex] %
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c ) ( 2,4 + 1,6 )² = 4² = 16
[tex]\frac{21 - 16}{16} = \frac{5}{16} = 5 : 16 = 0,3125 = 31,25[/tex] %
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Szczegółowe wyjaśnienie: