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katuchaeka
@katuchaeka
August 2022
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Найдите неизвестный член пропорции:
7 1/3:2 1/2=3 2/3:y
4 2/5:x=8 4/5:2 1/2
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ndusha
Verified answer
7 1/3:2 1/2=3 2/3:y
22/3:5/2=11/3:y можем сразу право и лево умножить на 3/11
2:5/2=1:у
у=5/2*1:2=5/2*1/2=5/4=1 1/4
4 2/5:x=8 4/5:2 1/2
22/5:x=44/5:5/2
х=22/5*5/2:44/5=22/1*1/2*5/44=11*5/44=5/4=1 1/4
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Answers & Comments
Verified answer
7 1/3:2 1/2=3 2/3:y22/3:5/2=11/3:y можем сразу право и лево умножить на 3/11
2:5/2=1:у
у=5/2*1:2=5/2*1/2=5/4=1 1/4
4 2/5:x=8 4/5:2 1/2
22/5:x=44/5:5/2
х=22/5*5/2:44/5=22/1*1/2*5/44=11*5/44=5/4=1 1/4