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elenakrivohiza3555
elenakrivohiza3555
11.07.2021 19:18 •  Математика

Найди значения выражений: (34 дм2 + 56 дм2): 3= (62 м2 - 53 м2)×4 =

👇
Ответ:
nurmuhamadnemat
nurmuhamadnemat
11.07.2021
(34дм2+56дм2):3=90дм2:3=30дм2
(62м2-53м2)×4=9м2×4=36м2
4,7(81 оценок)
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Ответ:
krasava5vovan
krasava5vovan
11.07.2021
ЗАПОМИНАЕМ - Какая часть - доля -
ДРОБЬ = ЧАСТЬ делим на ЦЕЛОЕ
ЧАСТЬ = ДРОБЬ умножаем на ЦЕЛОЕ
ЦЕЛОЕ = ЧАСТЬ делим на ДРОБЬ
РЕШЕНИЕ
А1    8 синих из 15 -  8/15 - ОТВЕТ -часть синих среди всех
А2    12* 1/3 = 4 - засохло - ОТВЕТ 
А3    8 : 1/4 = 8*4 = 32 вагонов - ОТВЕТ
А4     56 га * (7/8) = 49 га - вспахал - ОТВЕТ
А5     42 стр * (1/6) = 42 : 6 = 7 стр - в первый день
          42 стр * (2/7) = 42/7*2 =  12 стр - во второй день
       7+12 = 19 стр - за два дня - ОТВЕТ
В1  28 : (4/7)  = (28/4)*7 = 49 яблонь - ОТВЕТ
4,6(23 оценок)
Ответ:
ROMMIT2
ROMMIT2
11.07.2021

Пошаговое объяснение:

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4,4(68 оценок)
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