Question

Determine o valor de x

Answer 1

Olá!

Aplicando o teorema de tales:

6/9 = 10/x

6x=90

x=15

Answer 2

Bom dia,

$\dfrac{4}{6} = \dfrac{y}{9} \\\\6y = 36\\y = 6$

x = y + 9

x = 6 + 9

x = 15

Abraços!