Question

Номер 1034 Решите неравенство:

Номер 1039 Вычислите:

 

 

Answer 1

$frac{left(2frac34+frac58right)cdotfrac49}{left(8frac16-3frac12right):1frac16}+frac{left(4,8-1frac25right):0,68}{29:left(2frac12+1frac18right)}\ left(2frac34+frac58right)cdotfrac49=left(frac{11}4+frac58right)cdotfrac49=frac{27}8cdotfrac49=frac32\ left(8frac16-3frac12right):1frac16=left(frac{49}6-frac72right):frac76=frac{28}6cdotfrac67=4$

$frac{left(2frac34+frac58right)cdotfrac49}{left(8frac16-3frac12right):1frac16}=frac32:4=frac32cdotfrac14=frac3{12}$

$left(4,8-1frac25right):0,68=left(frac{48}{10}-frac75right):frac{68}{100}=frac{34}{10}cdotfrac{100}{68}=frac{10}2=5\ 29:left(2frac12+1frac18right)=29:left(frac52+frac98right)=29:frac{29}8=29cdotfrac8{29}=8\ frac{left(4,8-1frac25right):0,68}{29:left(2frac12+1frac18right)}=frac58$

$frac{left(2frac34+frac58right)cdotfrac49}{left(8frac16-3frac12right):1frac16}+frac{left(4,8-1frac25right):0,68}{29:left(2frac12+1frac18right)}=frac3{12}+frac58=frac{12+30}{48}=frac{42}{48}=frac78$

$1033.1quad9-frac{5x+1}2>x+5quadtimes2\ 18-5x-1>2x+10\ -5x-2x>10-17\ -7x>-7\ x<1\ 2.quad1,75+frac{2x}3frac14\ 3.quadfrac{4+y}2-frac{y+2}7-2\ 4.quad4+frac{7y-3}{5}>frac{3y+5}4-frac{3y}2quadtimes20\ 80+28y-12>15y+25-30y\ 28y+15y>25-68\ 43y>-43\ y>-1$

$1034.1quadfrac{7x+2}6-xleqfrac{5x+4}3-4xquadtimes6\ 7x+2-6xleq10x+8-24x\ x+14xleq8-2\ 15xleq6\ xleqfrac35\ 2.quadfrac{4x+1}3-x>frac{x+1}2-frac{x-3}4quadtimes12\ 16x+4-12x>6x+6-3x+9\ 4x-3x>15-4\ x>11\ 3.quadfrac{9-5x}2-frac{4x}31\ 4.quadfrac{5x-3}4-frac{11x}6geqfrac{2(1-x)}3+frac{3x}2quadtimes12\ 15x-9-22xgeq8-8x+18x\ -7x-10xgeq8+9\ -17xgeq17\ xleq-1$