Question

ПЖ СРОЧНО!!Сделайте только 4 5 и 6 зададание

Answer 1

Ответ:

4.

$\frac{1}{3} *(2a-9)-\frac{1}{2}*(2b+4)\\\\\\\frac{1}{6}*(4a - 18 -15b - 12) \\\\\\\\ \frac{1}{6} *(4a - 30 - 15b)\\\\\\a = 4\frac{1}{2}\b=\frac{4}{15} \\\\\\ \frac{1}{6} *(4* 4\frac{1}{2}-30-15*\frac{4}{15} )\\\\\\\\\frac{1}{6} *(2-30-4) \\\\\\\frac{1}{6} *(-26) \\\\\\-\frac{13}3}$

6.

$\frac{0.1482 + 0.0418}{\frac{18}{5}*\frac{1}{2}/(-\frac{9}{500})}\\\\\\\frac{\frac{19}{100} }{\frac{9}{5}*(-\frac{500}{9})}\\\\\\\frac{\frac{19}{100}}{-100}\\\\\\-\frac{19}{10000}\\\\\\-0.0019$