Question

помогите..................​

Answer 1

Ответ:

Б) $k = \frac{1750}{27}$

Пошаговое объяснение:

Б) $1590 + 17500 \div k = 1860$

$1590 + 17500 \div k = 1860.k≠0$

$1590 + \frac{17500}{k} = 1860$

$\frac{17500}{k} = 1860 - 1590$

$\frac{17500}{k} = 270$

$17500 = 270k$

$270k = 17500$

$k = \frac{1750}{27} .k≠0$

$k = \frac{1750}{27}$

2) 135789357-128765456=7023901

578900576-100135434=478765142

17600065-7135940=10464125

236000090+708765432=944765522

100135879+135056876=235192755

675135000+5463135=680598135