Question

Пжж помогите даю44 баллов​

Answer 1

Ответ:

1.

1) $-66\frac{2}{3}$ ; 2) -1170 ; 3) 25,25 ; 4) -2,75 ; 5) -100,5 ; 6) 0,8

2.

1) -6,8 ; 2) -5,5 ; 3) 0,6 ; 4) -22,5 ; 5) 2,68 ; 6) -40

Пошаговое объяснение:

1.

1)

$8\frac{2}{3} : (-0,13) = \frac{26}{3} : (-\frac{13}{100})=-\frac{26}{3}:\frac{13}{100} =\frac{26}{3} * \frac{100}{13} = -\frac{2}{3} * 100 = -\frac{2*100}{3*1} = -\frac{200}{6} = -66\frac{2}{3}$

2)

$-11,7 : \frac{1}{100} = -\frac{117}{10} * 100 = -117*10 = -1170$

3)

$-40,4 : (-1\frac{3}{5}) = -\frac{202}{5} : (-\frac{8}{5}) = \frac{202}{5}:\frac{8}{5} =\frac{202}{5} * \frac{5}{8} = 101 * \frac{1}{4} = \frac{101}{4} = 25\frac{1}{4} = 25,25$

4)

$6,25:(-2\frac{3}{11}) = \frac{25}{4} : (-\frac{25}{11}) = -\frac{25}{4}:\frac{25}{11} = -\frac{25}{4} * \frac{11}{25} = -\frac{1}{4} * 11 = -\frac{1*11}{4*1} = -\frac{11}{4} = -2\frac{3}{4} = -2,75$

5)

$-12\frac{3}{50} : 0,12 = -\frac{603}{50} : \frac{3}{25} = -\frac{603}{50} * \frac{25}{3} = -\frac{201}{2} = -100\frac{1}{2} = -100,5$

6)

$-1,4 : (-1\frac{3}{4}) = -\frac{7}{5} : (-\frac{7}{4}) =\frac{7}{5} : \frac{7}{4} = \frac{7}{5} * \frac{4}{7} = \frac{1}{5} *4 = \frac{4}{5} = \frac{1*4}{5*1} = \frac{4}{5} = 0,8$

2.

1)

$-10\frac{4}{5} : 1\frac{10}{17} = -\frac{54}{5} : \frac{27}{17} = -\frac{54}{5} * \frac{17}{27} = -\frac{2}{5} * 17 = -\frac{2*17}{5*1} = -\frac{34}{5} = -6\frac{4}{5} = -6,8$

2)

$4\frac{1}{9} : (-0,74) = \frac{37}{9} : (-\frac{37}{50}) = -\frac{37}{9}:\frac{37}{50} = -\frac{37}{9} * \frac{50}{37} = -\frac{1}{9} * 50 = -\frac{1*50}{9*1} = -\frac{50}{9} = -5\frac{5}{9} = -5,5$

3)

$-0,675 : (-1\frac{1}{8}) = -\frac{27}{40} : (-\frac{9}{8}) = \frac{27}{40} : \frac{9}{8} = \frac{27}{40} * \frac{8}{9} = \frac{3}{5} = 0,6$

4)

$31,5 : (-1\frac{2}{5}) = \frac{63}{2} :(-\frac{7}{5}) = -\frac{63}{2} : \frac{7}{5} = -\frac{63}{2} * \frac{5}{7} = -\frac{9}{2} * 5 = -\frac{9*5}{2*1} = -\frac{45}{2} = -22\frac{1}{2} = -22,5$

5)

$-4,02 : (-1\frac{1}{2}) = -\frac{201}{50} : (-\frac{3}{2}) = \frac{201}{50} : \frac{3}{2} = \frac{201}{50} * \frac{2}{3} = \frac{67}{25} = 2\frac{17}{25} = 2,68$

6)

$2\frac{2}{5} : (-0,06) = \frac{12}{5} : (-\frac{3}{50}) = -\frac{12}{5} : \frac{3}{50} = -\frac{12}{5} * \frac{50}{3} = -4*10 = -40$