Question

ПОМОГИТЕ!!!!!!!СРОЧНО!!!!!!!!

Answer 1

Ответ:

Пошаговое объяснение:

b/(7/8)=(4/11)/(28/11)

b/(7/8)=(4/11)*(11/28)

b/(7/8)=44/308

b=(44/308)*(7/8)

b=308/2464

b=0.125

Answer 2

$b:\frac{7}{8}=\frac{4}{11}:\frac{28}{11}\\b*\frac{8}{7}=\frac{4}{11}*\frac{11}{28}\\\frac{8b}{7}=\frac{1}{7}\\8b=\frac{7*1}{7}\\8b=1\\b=1:8\\b=\frac{1}{8}\\\\b=0.125$