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@3423434234
November 2021
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40% от 30% числа Х равны 7,8. Найдите Х.
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Vasily1975
Verified answer
X*0,3*0,4=0,12*x=7,8. Отсюда x=7,8/0,12=65
1 votes
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NadDer
40% = 0,4
30% = 0,3
0,4*0,3х = 7,8
0,12х = 7,8
х = 7,8:0,12
х = 65
2 votes
Thanks 1
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Answers & Comments
Verified answer
X*0,3*0,4=0,12*x=7,8. Отсюда x=7,8/0,12=6530% = 0,3
0,4*0,3х = 7,8
0,12х = 7,8
х = 7,8:0,12
х = 65