Question

Помогите решить уравнение.1) х:2 2/7=7:0,8; 2) 6 5/6: 4,1 = 6,5:х .

Answer 1

$1) x: 2frac{2}{7}=7:0,8; \ x: frac{16}{7}=7: frac{4}{5}; \ x* frac{7}{16}= frac{35}{4}; \ x=frac{35}{4}: frac{7}{16}; \ x=frac{35}{4}* frac{16}{7}; \ x=5*4; \ x=20 \ 2) 6 frac{5}{6} : 4,1 = 6,5:x; \ frac{41}{6}: frac{41}{10}= frac{65}{10}:x; \ frac{41}{6}* frac{10}{41}= frac{10}{65}*x; \ frac{5}{3}= frac{10}{65}x; \ frac{5}{3}:frac{10}{65}=x; \ frac{5}{3}*frac{65}{10}=x; \ frac{65}{6}=x; \ x=10frac{5}{6}$