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tatyanablok
tatyanablok
13.05.2021 13:30 •  Математика

На первой поляне грибники нашли 5 маслят и 4 рыжика,а на второй поляне 7 маслят и 6 рыжиков. 1)сколько всего грибов они нашли? 2) сколько всего маслят они нашли? 3) сколько всего рыжиков они нашли?

👇
Ответ:
zozoshcka17
zozoshcka17
13.05.2021
5+4+7+6=22 всего
5+7=12 маслят
6+4=10 рыжиков
4,8(13 оценок)
Ответ:
Dedret
Dedret
13.05.2021
5+4=9 (грибов)-на первой поляне всего.
7+6=13 (грибов)-на второй поляне всего.
9+13=22 (гриба)-всего.
5+7=12 (грибов)-маслят всего.
4+6=10 (грибов) -рыжиков всего.
4,5(57 оценок)
Открыть все ответы
Ответ:
tseng7788
tseng7788
13.05.2021

Пошаговое объяснение:

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4,6(44 оценок)
Ответ:
vadim4ikkek
vadim4ikkek
13.05.2021
Ответ  корень 5 степ. из (128x^2) = 24 + корень 5 степ. из (64х)  (128x^2)^(1/5) = 24 + (64x)^(1/5)  128^(1/5) * x^(2/5) = 24 + 64^(1/5) * x^(1/5)  (2^7)^(1/5) * x^(2/5) = 24 + (2^6)^(1/5) * x^(1/5)  2^(5/5) * 2^(2/5) * x^(2/5) = 24 + (2^5/5) * 2^(1/5) * x^(1/5)  2 * (2x)^(2/5) - 2 * (2x)^(1/5) - 24 = 0  (2x)^(2/5) - (2x)^(1/5) - 12 = 0  (2x)^(1/5) = t  t^2 - t - 12 = 0  t1 = 4 => (2x)^(1/5 )= 4 => 2x = 4^5 = 1024 => x = 1024/2 = 512  t2 = -3 => (2x)^(1/5) = -3 => 2x = (-3)^5 = -243 => x =-243/2 = -121.5 
4,5(10 оценок)
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