Question

Find the unknown value in the proportion 2:x
= 3: 9​

Answer 1

Just find the value of x and then substitute into the account.

You must do the cross multiplication, note:

$\frac{2}{x} = \frac{3}{9} \\\\3.x=2.9\\\\3x=18\\\\x=\frac{18}{3} \\\\x = 6$

Replacing we will have

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

See that when we divided each side of the fractions, the result became equal, so the number sought is actually 6.

$\frac{2}{6} = \frac{3}{9} \\\\0,3333 = 0,3333$

Answer 2

Resposta:

X = 6

Explicação passo a passo:

$\frac{2}{x}=\frac{3}{9}$

3x = 2 . 9

3x = 18

x = 18 : 3

x = 6