Question

Determine o valor do fermo desconhecido

A) x/15=1/5

B) x/9=3/1

C) x/2=15/10

D) 5/x=3/6

E) 7/8=14/9

F) 3/5=x/10

Answer 1

Resposta:

Explicação passo-a-passo:

$\frac{x}{15} =\frac{1}{5} \\5x=15\\x=\frac{15}{5}=3\\\\\\\frac{x}{9} =\frac{3}{1} \\x=27\\\\\frac{x}{2} =\frac{15}{10} \\10x=30\\x=\frac{30}{10}=3\\\\\frac{5}{x} =\frac{3}{6} \\3x=30\\x=\frac{30}{3}=10\\\\\frac{7}{8} =\frac{14}{9} ???\\\\\frac{3}{5} =\frac{x}{10} \\5x=30\\x=\frac{30}{5}=6$