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Соня2026
@Соня2026
March 2022
2
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помогите с 9.30 и 9.31 (5 класс)
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xxxeol
Verified answer
РЕШЕНИЕ
9.30
1) 11/21 * 35/31 = 5/9
2) 28/33 * 11/21 = 4/9
3) 15/44 * 11/21 * 28/45 = 1/9
4) 11/21 * 3/8 *63/22 = 9/16
9.31.
1)4/15 * 15/16 = 1/4
2)25/36 * 9/25 = 1/4
3) 27/80 * 20/27 = 1/4
4) 9/25 * 25/36 = 1/4
1 votes
Thanks 2
Kirillsveta0103
9.30
1) m *(n*35/33)=m*n*35/33=11/21*35/33=5/9
2) (28/33 * m)*n=28/33 * 11/21=4/9
3) m*15/44*n*38/45=11/21*15/44*38/45=1/7 * 1/2 * 19/9=19/126
4) n*3/8*63/22*m=11/21*3/8*63/22=9/16
9.31
Все выражения равны.
Значит ответ будет такой: а*b*c=9/25*20/27*15/16=1/4
3 votes
Thanks 2
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Answers & Comments
Verified answer
РЕШЕНИЕ9.30
1) 11/21 * 35/31 = 5/9
2) 28/33 * 11/21 = 4/9
3) 15/44 * 11/21 * 28/45 = 1/9
4) 11/21 * 3/8 *63/22 = 9/16
9.31.
1)4/15 * 15/16 = 1/4
2)25/36 * 9/25 = 1/4
3) 27/80 * 20/27 = 1/4
4) 9/25 * 25/36 = 1/4
1) m *(n*35/33)=m*n*35/33=11/21*35/33=5/9
2) (28/33 * m)*n=28/33 * 11/21=4/9
3) m*15/44*n*38/45=11/21*15/44*38/45=1/7 * 1/2 * 19/9=19/126
4) n*3/8*63/22*m=11/21*3/8*63/22=9/16
9.31
Все выражения равны.
Значит ответ будет такой: а*b*c=9/25*20/27*15/16=1/4