Question

Daje naj!!!!!! Dam dużo punktów!​

Answer 1

K)

[tex] \frac{ - ( \frac{23}{6} - \frac{1}{3}) }{ - 12} = \frac{ - ( \frac{23}{6} - \frac{2}{6}) }{ - 12} = \frac{ - ( \frac{21}{6} ) }{ - 12} = \frac{ - \frac{7}{2} }{ - 12} = \frac{ \frac{7}{2} }{12} = \frac{7}{24} [/tex]

R)

[tex] - 4(1 + 5 \times ( - 2)) = - 4(1 - 10) = - 4 \times ( - 9) = 36[/tex]

E)

[tex](0.8 - 0.5) + \frac{3}{8} \times ( - 1.6) = (0.8 - 0.5) + \frac{3}{8} \times( - \frac{8}{5} ) = 0.3 + \frac{3}{8} \times ( - \frac{8}{5} ) = 0.3 - \frac{3}{8} \times \frac{8}{5} = 0.3 - 3 \times \frac{1}{5} = \frac{3}{10} - \frac{3}{5} = - \frac{3}{10} [/tex]

G)

[tex]( {2}^{3} \times \frac{3}{ {2}^{2} } - \frac{ {2}^{2} }{5} ) \div 2.2 = ( {2}^{3} \times \frac{3}{2 {}^{2} } - \frac{4}{5} ) \div \frac{11}{5} = (2 \times 3 - \frac{4}{5} ) \div \frac{11}{5} = (6 - \frac{4}{5} ) \times \frac{5}{11} = \frac{26}{5} \times \frac{5}{11} = 26 \times \frac{1}{11} = \frac{26}{11} = 2 \frac{4}{11} [/tex]

P)

[tex] \frac{ - 9 + 15}{3} + \frac{ - 7}{4 - 5} - 3 \times ( - 7) = \frac{ - 9 + 15}{3} + \frac{ - 7}{ - 1} + 21 = \frac{6}{3} + \frac{ - 7}{ - 1} + 21 = \frac{6}{3} + 7 + 21 = 2 + 7 + 21 = 30[/tex]

N)

[tex] \frac{4 + ( - 6) \div 2 - 2 - 3 + 4}{9 - 7 + 5 - 3} = \frac{4 - 3 - 2 - 3 + 4}{4} = \frac{0}{4} = 0[/tex]