Помогите 982! Пожалуйста. Created by mansik77. matematika-ru

Помогите 982! Пожалуйста...

mansik77 @mansik77

October 2021 1 12 Report

Помогите 982! Пожалуйста

Answers & Comments

RayMiller

Пошаговое объяснение:

1) –2,8+х+5,36–7,2+у–7,36= –12+х+у

при х=–13; у=54

–12–13+54= 29

2) $m - 2 \frac{4}{9} + 8 \frac{13}{24} + n - 3 \frac{2}{9} - 4 \frac{5}{24} = m + n + 4 \frac{13 - 5}{24} - 5 \frac{4 + 2}{9} = m + n + 4 \frac{8}{24} - 5 \frac{6}{9} = m + n + 4 \frac{1}{3} - 5 \frac{2}{3} = m + n - 1 \frac{1}{3}$

при m= $- 3 \frac{5}{6}$ ;

n= $- 2 \frac{11}{12}$

$- 3 \frac{5}{6} - 2 \frac{11}{12} - 1 \frac{1}{3} = - 3 \frac{10}{12} - 2 \frac{11}{12} - 1 \frac{4}{12} = - 6 \frac{25}{12} = - 8 \frac{1}{12}$

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