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Kseniya3456
@Kseniya3456
August 2022
1
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Найди значение Х из пропорции:
а) 2/ x +2=7/28 б) x-3/30=3/10
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sibilevadasha
А)перемножим крайние и средние члены пропорции
2*28=7х+14
7х=42
х=6
б)та же схема
10х-30=90
10х=60
х=6
0 votes
Thanks 2
BorisenkovaAnya
10х-30=90 будет 10х=90+30 10х=120
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Answers & Comments
2*28=7х+14
7х=42
х=6
б)та же схема
10х-30=90
10х=60
х=6