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Nullum666
@Nullum666
August 2022
2
5
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найдите
а) 0,3 от 17½
б) 4,5 от 12
в) число x, если ⅔ числа x равны 7/12
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MusikaWinx
А) 0,3 * 17,5 = 3/10 * 35/2 = 21/4 = 5,25.
б) 4,5 * 12 = 54.
в) 2х/3 = 7/12 => х = 7*3/(12*2) = 21/24 = 7/8.
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sedinalana
17,5*0,3=5,25
12*4,5=54
x=7/12:2/3=7/12*3/2=7/8
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Answers & Comments
б) 4,5 * 12 = 54.
в) 2х/3 = 7/12 => х = 7*3/(12*2) = 21/24 = 7/8.
12*4,5=54
x=7/12:2/3=7/12*3/2=7/8