Question

Алгебра срочно помогите ​

Answer 1

Ответ:

$\frac{2}{9} \times 0.625 \times 4.5 + 0.175 = \\ = \frac{2}{9} \times \frac{5}{8} \times \frac{9}{2} + 0.175 = \\ = \frac{2 \times 5 \times 9}{9 \times 8 \times 2} + 0.175 = \\ = \frac{5}{8} + 0.175 = 0.625 + 0.175 = 0.8$

$\frac{6}{7} \times 2 \frac{1}{3} + 1 \frac{1}{6} \times \frac{6}{7 } = \\ = \frac{6}{7} \times \frac{7}{3} + \frac{7}{6} \times \frac{6}{7} = \\ = \frac{6 \times 7}{7 \times 3} + \frac{7 \times 6}{6 \times 7} = \\ = 2 + 1 = 3$