Question

решите пожалуйста. задание во вложениях!!!

5739460b41d60612ad61e44427d5f9f4.doc

Answer 1

$<var>\frac{0.31*8.4-5.61:27.5}{(9.75:5.2+3\frac{2}{5}*2\frac{7}{34}):1\frac{9}{16}}=\frac{2.604-0.204}{(1.875+\frac{17}{5}*\frac{75}{34}):\frac{25}{16}}=\frac{2.4}{(1.875+\frac{15}{2}):\frac{25}{16}}=</var>$

$<var>=\frac{2.4}{(1.875+7.5):\frac{25}{16}}=\frac{2.4}{9.375:\frac{25}{16}}=\frac{2.4}{9\frac{3}{8}:\frac{25}{16}}=\frac{2.4}{\frac{75}{8}*\frac{16}{25}}=\frac{2.4}{6}=0.4</var>$

 

10x-(2.7x+2.4)=107.1

10x-2.7x-2.4=107.1

7.3x=109.5

x= 15

 

(0.24-x)*0.37=0.074

 0.0888-0.37x=0.074

0.37x= 0.0148

x= 0.04