Question

complete as fracoes de modo que elas sejam equivalentes. a)3/5=6/x b)4/9=x/9 c)1/6=7/x d)2/6=3/x e)a/4=2a/x

Answer 1

Resposta:

A)$\frac{3}{5}=\frac{6}{10}$

B)$\frac{4}{9}=\frac{4}{9}$

C)$\frac{1}{6}=\frac{7}{42}$

D)$\frac{2}{6}=\frac{3}{9}$

E)$\frac{a}{4}=\frac{2a}{8}$

Explicação passo-a-passo:

A) $\frac{3}{5} =\frac{6}{x}$

3x=5·6

3x=30

x=$\frac{30}{3}$

x=10

B) $\frac{4}{9} = \frac{x}{9}$

9x= 4·9

9x=36

x=$\frac{36}{9}$

x=4

C) $\frac{1}{6}=\frac{7}{x}$

x=7·6

x=42

D)$\frac{2}{6}=\frac{3}{x}$

2x=6·3

2x=18

x=$\frac{18}{2}$

x=9

E)$\frac{a}{4}=\frac{2a}{x}$

xa=8a

x=8a-a

x=8

Answer 2

Resposta:

a) 3/5= 6/x

3x= 30

x= 30/3

x= 10

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b) 4/9= x/9

9x= 36

x= 36/9

x= 4

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c) 1/6=7/x

x= 6*7

x=42

------------------

d) 2/6= 3/x

2x= 18

x= 18/2=9

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e) a/4= 2a/x

ax= 2a*4

x=8a/a

x= 8