48 preseleccionados para un grupo musical 1/4 toca instrumentos de percusión y 5/12 tienen habilidades vocales 5/24 tocan instrumentos de cuerda ¿Cuántos preseleccionados reúnen cada característica?

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x