Question

me ajudem, por favor.​

Answer 1

Resposta:

a) x+2x+24=78

x+2x= 54

3x= 54

x= 54/3

x= 18

b)AB/CD =

18/24=3/4

c) AC/AD=

AB+BC/AD=

18+36/78=

54/78=

3/5