Question

пожалуста срочно помогите самостійна робота ​

Answer 1

Все 100% правильно ответь на фотке

Answer 2

$- 5 \times 49 \times 4 = - 20 \times 49 = - 980$

$182 \div ( - 26) = - 7$

$- 125 \times 17 \times ( - 0.8) = 17 \times 100 = 1700$

$8 \times ( - 125) \times ( - 0.16) = - 1000 \times ( - 0.16) = 160$

$0.4 \times ( - 25) \times ( - 5) \times ( - 0.2) = - 10 \times 1 = - 10$

$4.2 \times ( - 7) - 9.3 \div (5.8 - 8.9) = - 29.4 - 9.3 \div ( - 3.1) = - 29.4 + 3 = - 26.4$

$\frac{7}{8} \times ( - 4.5) \times ( - 1 \frac{1}{7} ) \times 0.4 = - \frac{7 \times 8}{8 \times 7} \times ( - \frac{9 \times 2}{2 \times 5} ) = - 1 \times ( - 1.8) = 1.8$

$( - \frac{4}{15} + \frac{7}{12} ) \div ( - \frac{38}{45} ) = ( - \frac{16}{60} + \frac{35}{60} ) \div ( - \frac{38}{45} ) = \frac{19}{60} \div ( - \frac{38}{45} ) = - \frac{19 \times 45}{60 \times 38} = - \frac{1 \times 3}{4 \times 2} = - \frac{3}{8}$

$9(7x - 6) - 18x = 63x - 54 - 18x = 45x - 54$

$7a - 6(19 - a) = 7a - 114 + 6a = 13a - 114$

$0.8(6x - 2) + 1.6(x - 4) = 4.8x - 1.6 + 1.6x - 6.4 = 6.4x - 8$

$- ( - 4.9 - 5.8z) - (3.1z - 5.6) = 4.9 + 5.8z - 3.1z + 5.6 = 2.7z + 10.5$