Question

Olá,como posso fazer teorema de Tales??
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Answer 1

Resposta:

1)

$\frac{3}{2}=\frac{4x+1}{3x} \\9x= 2(4x+1)\\9x= 8x+2\\9x-8x=2\\x=2$

2)

$\frac{700}{3-x}=\frac{200}{x}\\ 700x= 200(3-x)\\700x=600-200x\\700x-200x=600\\900x=600\\x= \frac{600}{900}\\ x= \frac{6}{3}$

simplificando por 3:

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

3)

$\frac{0,8}{2,2}= \frac{3,2}{(3,2+x)}\\ 0,8(3,2+x)=7,04\\2,56+0,8x=7,04\\0,8x=7,04-2,56\\0,8x=4,48\\x=\frac{4,48}{0,8} \\x= 5,6m$

Explicação passo-a-passo: