Question

У (2,6 - 6): 0,5.
915. Решите уравнение:
1) 3,5х = 5,95; пппп​

Answer 1

Ответ:

$1)(2.6 - 6) \div 0.5 = - 6.8 \\ \: \: \: \: \: 1. \: \: 2.6 - 6 = 2 \frac{6}{10} - \frac{6}{1} = \frac{26}{10} - \frac{60}{10} = - \frac{34}{10} = - 3 \frac{2}{5} \\ \: \: \: \: \: 2. \: \: - 3 \frac{2}{5} \div 0.5 = - \frac{17}{5} \times \frac{1}{2} = - \frac{17 \times 2}{5 \times 1} = - \frac{34}{5} = - 6 \frac{4}{5} = - 6.8$

$2)3.5x = 5.95 \\ x = 5.95 \div 3.5 \\ x = 1.7$