Question

Alguém me ajuda a resolver a questão 23 da foto?

Answer 1

x/150=y/130=z/100=x+y+z/380=304/380
x/150=304/380
380x=150.304
x=150.304/380
x=120 m

y/130=304/380
380y=130.304
y=130.304/380
y=104 m

z/100=304/380
380z=100.304
z=100.304/380
z=80 m