Question

7- Determine o valor de x na figura abaixo:

a) 8
b) 9
c) 10
d) 11​

Answer 1

$\Large\boxed{\begin{array}{l}\sf\dfrac{10}{5}=\dfrac{20}{x}\\\sf 2=\dfrac{20}{x}\\\sf 2x=20\\\sf x=\dfrac{20}{2}\\\sf x=10\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~c}}}}\end{array}}$

Answer 2

Resposta:

10/5 = 20/x

10x=100

x=100/10

x=10