Ответ:
Пошаговое объяснение:
[tex](\frac{16}{57} +x):9=2,(1)\\ \\ (\frac{16}{57} +x):9=2\frac{1}{9} \\ \\ \frac{16}{57} +x =2\frac{1}{9} *9\\ \\ \frac{16}{57} +x =\frac{19}{9} *9\\ \\ \frac{16}{57} +x =19\\ \\ x=19 -\frac{16}{57} \\ x=18\frac{41}{57}[/tex]
[tex]3,(3)x:4,5=1\frac{3}{7} :3/14\\ \\ 3,(3)x:4,5=\frac{10}{7} *\frac{14}{3} \\ \\ 3\frac{1}{3} x:4\frac{1}{2} =\frac{20}{3} \\ \\ 3\frac{1}{3} x=\frac{20}{3} *4\frac{1}{2} \\ \\ 3\frac{1}{3} x=\frac{20}{3} *\frac{9}{2} \\ \\ 3\frac{1}{3} x=30\\ \\ x=30:3\frac{1}{3} \\ \\ x=30*\frac{3}{10} \\ \\ x=9[/tex]
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Ответ:
Пошаговое объяснение:
[tex](\frac{16}{57} +x):9=2,(1)\\ \\ (\frac{16}{57} +x):9=2\frac{1}{9} \\ \\ \frac{16}{57} +x =2\frac{1}{9} *9\\ \\ \frac{16}{57} +x =\frac{19}{9} *9\\ \\ \frac{16}{57} +x =19\\ \\ x=19 -\frac{16}{57} \\ x=18\frac{41}{57}[/tex]
[tex]3,(3)x:4,5=1\frac{3}{7} :3/14\\ \\ 3,(3)x:4,5=\frac{10}{7} *\frac{14}{3} \\ \\ 3\frac{1}{3} x:4\frac{1}{2} =\frac{20}{3} \\ \\ 3\frac{1}{3} x=\frac{20}{3} *4\frac{1}{2} \\ \\ 3\frac{1}{3} x=\frac{20}{3} *\frac{9}{2} \\ \\ 3\frac{1}{3} x=30\\ \\ x=30:3\frac{1}{3} \\ \\ x=30*\frac{3}{10} \\ \\ x=9[/tex]