4. Если 3 4, 7, то чему равно-?. Created by Daniel9007. matematika-ru

4. Если 3 4, 7, то чему равно-?...

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4. Если 3 4, 7, то чему равно-?

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wafel

$\frac{a}{b} = 4 = > a = 4b \\ \frac{b}{c} = 7 = > c = \frac{b}{7} \\ \frac{a}{c} = 4b \div \frac{b}{7} \\ \frac{a}{c} = 4b \times \frac{7}{b} \\ \frac{a}{c} = 28$

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na risunke izobrazhyon grafik zavisimosti projdennogo peshehodom puti ot vremeni dvc43de96a8b6f3561567049790a0eee2e 77176

mozhet li put byt bolshe peremesheniya v kakom sluchae

kakoe vremya dolzhen rabotat elektrodvigatel moshnostyu 350vt chtoby zavershit ra

1 po dannym risunka najdite ugly 1 i 2 esli a b i lt2 v tri raza menshe s1

kakoj massy gruz mozhet podnyat kran moshnostyu 5 kvt na vysotu 15 m za vremya rav

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