Question

помогите решить пожалуста.

Answer 1

1 не знаю

$2) frac{x}{2} + frac{3x - 2}{5} = 4 | times 10| \ 5x + 2(3x - 2) = 40 \ 5x + 6x - 4 = 40$

$11x - 4 = 40 \ 11x = 40 + 4 \ 11x = 44 \ x = 44 div 11 \ x = 4$

3)

$6x - 4x = 3(3x + 11) \ 2x - 9x - 33 = 0 \ - 7x - 33 = 0 \ - 7x = 0 + 33 \ - 7x = 33$

$x =33 div ( - 7) \ x = - frac{33}{7} = - 4 frac{5}{7}$

4.

$a) sqrt{144 times 16} = 12 times 4 = 48 \ b) frac{5 times 2}{9} = frac{10}{9} = 1 frac{1}{9}$

$v) frac{3 times 4}{16} = frac{12}{16} = frac{6}{8} \ g) frac{2 times 11}{12} = frac{22}{12} = 1 frac{10}{12} = 1 frac{5}{6}$