Question

Me ajudem gente pfv

Answer 1

Resposta:

c) x = 6

d) x = 8

e) x = 7

Explicação passo-a-passo:

Teorema de Tales

c)

x/8 = 9/12

x/8 = 3/4

x = 3.8/4 = 3.2 = 6

d)

x/9 = 4/18

x = 4.9/18 = 4 .2 = 8

e)

10/(3x + 1) = 15/(5x - 2)

10.(5x - 2) = 15.(3x + 1)

50x - 20 = 45x + 15

50x - 45x = 15 + 20

5x = 35

x = 35/5 = 7