Question

Помогите пожалуйста плиз

Answer 1

$7 \div 8 = x \div 96 \\ 672 = 8x \\ 8x = 672 \\ x = 84 \\ \\ y \div 1 \frac{5}{31} = 7 \frac{3}{4} \div \frac{1}{3} \\ \frac{5}{31} y = \frac{31}{4} \times 3 \\ \frac{5}{31} y = \frac{93}{4} \\ y = \frac{2883}{20} \\ \\ \frac{a}{0.6} = \frac{25}{3} \\ \frac{a}{ \frac{3}{5} } = \frac{25}{3} \\ \frac{5a}{3} = \frac{25}{3} \\ 5a = 25 \\ a = 5 \\ \\ \frac{2 + x}{5} = \frac{4}{9} \\ 9(2 + x) = 20 \\ 18 + 9x = 20 \\ 9x = 20 - 18 \\ 9x = 2 \\ x = \frac{2}{9}$