Oblicz jakim procentem liczby 120 jest wartość wyrażenia 5 i 1/4 : 0,05-(pierwiastek z 6,25 + 3 i 2/3) *7 i 1/2+1,25 Fast na dzis bym chcial
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5 1/4:0,05-(pierwiastek z 6,25+3 2/3)*7 1/2+1,25=
5,25:0,05-(2,5+3 2/3)*7 1/2+ 1 1/4=
105-(2 1/2+3 2/3)*15/2+ 1 1/4=
105-(2 3/6+3 4/6)*15/2+1 1/4=
105-37/6*15/2+1 1/4=
105-185/4+5/4=
105-46 1/4+1 1/4=58 3/4+1 1/4=60
120-100%
60-x
x=(100*60)/120=50%
5 1/4:0,05-(pierw z 6,25+3 2/3)*7 1/2+1,25=
5,25:0,05-(2,5+3 2/3)*7 1/2+ 1 1/4=
105-(2 1/2+3 2/3)*15/2+ 1 1/4=
105-(2 3/6+3 4/6)*15/2+1 1/4=
105-37/6*15/2+1 1/4=
105-185/4+5/4=
105-46 1/4+1 1/4=58 3/4+1 1/4=60
120-100%
60-x
x=50%