а)1,9х + 3,34х-2,24х=30,66
x(1.9+3.34-2.24)=30.66 3x=30.66 x= 10.22 б)96,41х-88,24х+1,83х=0,0202 x(96,41-88,24+1,83)=0,0202 10x =0,0202
x=0,00202 в)4,25х+56,402х-4,652х=58,912 x(4,25+56,402-4,652)=58,912 56x=58,912 x= 1.052 г)5,45х-4,568х-0,882х=0 x(5,45-4,568-0,882)=0 x=0
ответ 1346(км)
пошаговое объяснение:
1)120*5=600(км) 2)600+146=746(км) 3)746+600= 1346
ответ:
18/30 и 15/18,
\frac{15}{18}= \frac{3*5}{6*3}= \frac{5}{6} = \frac{5*5}{6*5}= \frac{25}{30} \\ \\ \frac{25}{30} u \frac{18}{30}
28/40 и 10/45 ,
\frac{28}{40}= \frac{4*7}{4*10}= \frac{7}{10}= \frac{7}{5*2} = \frac{7*9}{5*2*9} = \frac{63}{90} \\ \\ \frac{10}{45}= \frac{5*2}{9*5}= \frac{5*2*2}{9*5*2} = \frac{20}{90} \\ \\ \frac{63}{90} u \frac{20}{90}
49/105 и 27/36,
\frac{49}{105}= \frac{7*7}{5*3*7}= \frac{7}{5*3} = \frac{7*4}{5*3*4} = \frac{28}{60} \\ \\ \frac{27}{36}= \frac{9*3}{4*3*3} = \frac{9}{4*3} = \frac{9*5}{4*3*5} = \frac{45}{60} \\ \\ \frac{28}{60} u \frac{45}{60}
60/90 и 15/50 ,
\frac{60}{90} =\frac{3*2*10}{3*3*10}= \frac{2*10}{3*10}= \frac{20}{30} \\ \\ \frac{15}{50}= \frac{5*3}{5*10}= \frac{3}{10}= \frac{3*3}{10*3}= \frac{9}{30} \\ \\ \frac{20}{30} u \frac{9}{30}
10/20 8 /24 и 9/45
\frac{10}{20} = \frac{10}{2*10}= \frac{1}{2} = \frac{5*3}{5*3*2} = \frac{15}{30} \\ \\ \frac{8}{24}= \frac{8}{3*8}= \frac{1}{3} = \frac{5*2}{5*2*3}= \frac{10}{30} \\ \\ \frac{9}{45} = \frac{9}{9*5}= \frac{1}{5} = \frac{2*3}{5*2*3}= \frac{6}{30} \\ \\ \frac{15}{30} u \frac{10}{30} u \frac{6}{30}
,22/44 24/30 и 27/36.
\frac{22}{44}= \frac{11*2}{11*4}= \frac{2}{4} = \frac{2*5}{4*5} = \frac{10}{20} \\ \\ \frac{24}{30} = \frac{6*4}{6*5} = \frac{4}{5}= \frac{4*4}{5*4}= \frac{16}{20} \\ \\ \frac{27}{36}= \frac{9*3}{9*4}= \frac{3}{4}= \frac{3*5}{4*5}= \frac{15}{20}
\frac{10}{20} u \frac{16}{20} u \frac{15}{20}
пошаговое объяснение:
Поделитесь своими знаниями, ответьте на вопрос:
А)1, 9х + 3, 34х-2, 24х=30, 66 б)96, 41х-88, 24х+1, 83х=0, 0202 в)4, 25х+56, 402х-4, 652х=58, 912 г)5, 45х-4, 568х-0, 882х=0
а) 1,9х + 3,34х-2,24х=30,66
x(1.9+3.34-2.24)=30.663x=30.66x=10.22б) 96,41х-88,24х+1,83х=0,0202 x(96,41-88,24+1,83)=0,0202
10x =0,0202
x=0,00202 в) 4,25х+56,402х-4,652х=58,912x(4,25+56,402-4,652)=58,91256x=58,912x=1.052г) 5,45х-4,568х-0,882х=0x(5,45-4,568-0,882)=0x=0