Question

помогите пжпжпжпжпжпж я могу дать 100балов​

Answer 1

Пошаговое объяснение:

1)

$3 \times | - 0.8| + 0.9 \times |6| = 3 \times 0.8 + 0.9 \times 6 = 2.4 + 5.4 = 7.8$

2)

$\frac{5}{8} \times |0.8| + | - 4.5| \div 0.3 = \frac{5}{8} \times 0.8 + 4.5 \div 0.3 = \frac{5}{8} \times \frac{4}{5} + 15 = \frac{1}{2} + 15 = \frac{31}{2} = 15 \frac{1}{2 } = 15.5$

3)

$\frac{5}{12} \times | - \frac{4}{5} | + 2.4 \div | - 3.6| = \frac{5}{12} \times \frac{4}{5} + \frac{12}{5} \div 3.6 = \frac{1}{3} + \frac{12}{5} \div \frac{18}{5} = \frac{1}{3} + \frac{12}{5} \times \frac{5}{18} = \frac{1}{3} + 2 \times \frac{1}{3} = \frac{1}{3} + \frac{2}{3} = 1$

4)

$0.19 + | - 0.17| \times 3 - |2.4| \div 6 = 0.19 + 0.17 \times 3 - 2.4 \div 6 = 0.19 + 0.51 - 0.4 = 0.3$