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иван4809
@иван4809
August 2022
2
10
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найти неизвестный член пропорции 4 4/5÷0,8=x÷1 1/6
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ann1885
Решаем крест на крест
4/5*7/6=0,8х
28/30=8/10 х
х=28/30:8/10
х=28/30*10/8
х=28/32
х=7/8
0 votes
Thanks 1
ann1885
ой ой ошиблась х=28/24
ann1885
х=7/6
byetbit
4/5 = 0.8
11/6 примерно =1.833
получаем: 0.8/0.8=x/ 1.833
x=0.8*1.833/0.8, 0.8 и 0.8 сокращаем остаеться 0
x=1.833
0 votes
Thanks 1
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Answers & Comments
4/5*7/6=0,8х
28/30=8/10 х
х=28/30:8/10
х=28/30*10/8
х=28/32
х=7/8
11/6 примерно =1.833
получаем: 0.8/0.8=x/ 1.833
x=0.8*1.833/0.8, 0.8 и 0.8 сокращаем остаеться 0
x=1.833