Oblicz : a) 16 1/4*2,5-4,25:0,8 = b) (3/4+6,4:8/15)*0,8= c) 1 2/3*(3,6+4 1/5): 2/5=.... Question from @lovepixel

November 2018 2 44 Report

Oblicz : a) 16 1/4*2,5-4,25:0,8 = b) (3/4+6,4:8/15)*0,8= c) 1 2/3*(3,6+4 1/5): 2/5=

oak

a) 16 1/4*2,5-4,25:0,8 = 65/4 * 5/2 - 4,25:0,8 = 325/8 - 4,25:0,8 = 325/8 - 5,3125 = 325/8 - 85/16 = 650/16 - 85/16 = 565/16 = 35,3125

b) (3/4+6,4:8/15)*0,8 = (3/4+32/5:8/15)*4/5 = (3/4+32/5*15/8)*4/5 = (3/4+480/40)*4/5 = (3/4+12/1)*4/5 = (3/4 + 48/4)*4/5 = 51/4 * 4/5 = 204/20 = 51/5 = 10,2

c) 1 2/3*(3,6+4 1/5): 2/5 = 5/3*(18/5 + 21/5) : 2/5 = 5/3 * 39/5 : 2/5 = 195/15 : 2/5 = 13/1 * 5/2 = 65/2 = 32,5

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anıa

$a) \\ 16\frac{1}{4}*2,5-4,25:0,8 =\frac{65}{4}*\frac{5}{2}-\frac{17}{4} : \frac{8}{10} =\\ \\ \frac{325}{8}-\frac{17}{4}*\frac{10}{8} = \frac{325}{8}-\frac{85}{16} =\frac{650}{16}-\frac{85}{16} = \frac{565}{16} = 35\frac{5}{16} \\ \\ b)\\ (\frac{3}{4}+6,4:\frac{8}{15})*0,8= (\frac{3}{4}+\frac{32}{5}*\frac{15}{8})*\frac{8}{10} = \\ \\ (\frac{3}{4}+12)*\frac{8}{10} = 12\frac{3}{4}*\frac{4}{5}=\frac{51}{4} * \frac{4}{5} = \frac{51}{5} = 10\frac{1}{5} \\ \\$

$c)\\ 1\frac{2}{3}*(3,6+4\frac{1}{5}): \frac{2}{5}=\frac{5}{3}*(\frac{18}{5}+\frac{21}{5})* \frac{5}{2} =\\ \\ \frac{5}{3}*\frac{39}{5}* \frac{5}{2} =13*\frac{5}{2} = \frac{65}{2}=32\frac{1}{2}$

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oblicz- -5x+4=x-8-2x-7=2x-7-7x+5=11x+4136x-14=14x-362x-2=-12+18

Oblicz i sprawdź!:3x+2=4x-10,5(2x+4)=2xx+8=27-x3x-3(2x-2)=3(x-2)2x-(8-x)=-2(x-5)

Oblicz:A) 2,5:1 1/3+3 3/44,2= B) 4,5:(2 2/5-2,25)+ 1 5/6= C) 2,6+3 2/5 : 1,7+4/7+ 2 1/3= D) 2/3(4/5-0,83/8):3/4=E) 3,5+1 1/91,8=F) (7/9+ 0,75)(2 9/11- 1,5)=G) (1,2:3/5-1 1/30,3):1 1/7=H) (2/9+1,4)*3 3/5+ 6 1/4:2,5=

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oblicz- -5x+4=x-8-2x-7=2x-7-7x+5=11x+4136x-14=14x-362x-2=-12+18

Oblicz i sprawdź!:3x+2=4x-10,5(2x+4)=2xx+8=27-x3x-3(2x-2)=3(x-2)2x-(8-x)=-2(x-5)

Oblicz:A) 2,5:1 1/3+3 3/4*4,2= B) 4,5:(2 2/5-2,25)+ 1 5/6= C) 2,6+3 2/5 : 1,7+4/7+ 2 1/3= D) 2/3*(4/5-0,8*3/8):3/4=E) 3,5+1 1/9*1,8=F) (7/9+ 0,75)*(2 9/11- 1,5)=G) (1,2:3/5-1 1/3*0,3):1 1/7=H) (2/9+1,4)*3 3/5+ 6 1/4:2,5=

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Oblicz:A) 2,5:1 1/3+3 3/44,2= B) 4,5:(2 2/5-2,25)+ 1 5/6= C) 2,6+3 2/5 : 1,7+4/7+ 2 1/3= D) 2/3(4/5-0,83/8):3/4=E) 3,5+1 1/91,8=F) (7/9+ 0,75)(2 9/11- 1,5)=G) (1,2:3/5-1 1/30,3):1 1/7=H) (2/9+1,4)*3 3/5+ 6 1/4:2,5=