Question

Alguém ajuda aí é para amanhã de manhã

Answer 1

Resposta:

$c) \: \frac{1}{x} = \frac{3}{9} \\ \\ 3x = 9 \div (3) \\ x = 3$

$d) \: \frac{x}{15} = \frac{1}{5} \\ \\ 5x = 15 \div (5) \\ x = 3$

$e) \: \frac{x}{9} = \frac{3}{1} \\ \\ x = 27$

$f) \: \frac{y}{2} = \frac{15}{10} \\ \\ 10y = 30 \\ \\ y = \frac{30}{ 10} \\ \\ y = 3$

$g) \: \frac{5}{y} = \frac{3}{6} \\ \\ 3y = 30 \\ \\ y = \frac{30}{3} \\ \\ y = 10$

$h) \: \frac{7}{8} = \frac{14}{a} \\ \\ 7a = 112 \\ \\ a = \frac{112}{7} \\ \\ a = 16$

$i) \: \frac{t}{9} = \frac{2}{7} \\ \\ 7t = 18 \\ \\ t = \frac{18}{7}$

$j) \: \frac{10}{m} = \frac{1}{3} \\ \\ m = 30$

$k) \: \frac{1}{7} = \frac{x}{8} \\ \\ 7x = 8 \\ \\ x = \frac{8}{7}$

$l) \: \frac{11}{5} = \frac{x}{10} \\ \\ 5x = 110 \\ \\ = \frac{110}{5} \\ \\ x = 22$

$m) \: \frac{45}{9} = \frac{15}{x} \\ \\ 5 = \frac{15}{x} \\ \\ 5x = 15 \\ \\ x = \frac{15}{5} \\ \\ x = 3$

$n) \: \frac{z}{100} = \frac{216}{600} \\ \\ 600z = 21600 \\ \\ z = \frac{21600}{600} \\ \\ z = 36$