a) I sposób: A=35 B=60 x%*A=B x%*35=60 35%x=60 0,35x=60|:0,35 x=171,43 II sposób: 35----->100% 60------>x x=60*100%/35 x=171,43% b) I sposób: A=120 B=50 x%*A=B x%*120=50 120%x=50 1,2x=50|:1,2 x=41,67 II sposób: 120----->100% 50------>x x=50*100%/120 x=41,67% c) I sposób: A=2,75 B=0,1 x%*A=B x%*2,75=0,1 2,75%x=0,1 0,0275x=0,1|:0,0275 x=3,64 II sposób: 2,75---->100% 0,1----->x x=0,1*100%/2,75 x=3,64% liczę na naj ;D
[latex]a)\A=35 , B=60\frac{60}{35}cdot100\%=frac{60}{7}cdot20\%=frac{1200}{7}\%=171frac{3}{1200}\%=171frac{1}{400}\%[/latex] [latex]b)\A=120 , B=50\frac{50}{120}cdot100\%=frac{5}{3}cdot25\%=frac{125}{3}\%=41frac{2}{3}\%[/latex] [latex]c)\A=2frac{3}{4} , B=0,1\frac{0,1}{2frac{3}{4}}cdot100\%=frac{1}{10} : 2frac{3}{4}cdot100\%=frac{1}{10} : frac{11}{4}cdot100\%=frac{1}{10}cdotfrac{4}{11}cdot100\%=\=frac{4}{11}cdot10\%=frac{40}{11}\%=3frac{7}{11}\%[/latex]
