Ответ:
a) 2,8x=2,1*3,2
2,8x=6,72
x=6,72:2,8
x=2,4
б) x: 5 2/3 = 1/ 7/9: 1 7/27
x: 5 2/3 = 17/17
x= 5 2/3*1 7/17
x=8
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Answers & Comments
Ответ:
a) 2,8x=2,1*3,2
2,8x=6,72
x=6,72:2,8
x=2,4
б) x: 5 2/3 = 1/ 7/9: 1 7/27
x: 5 2/3 = 17/17
x= 5 2/3*1 7/17
x=8