Respuesta :

15.2 is the answer to you question
76/x=100/20
(76/x)*x=(100/20)*x       - we multiply both sides of the equation by x
76=5*x       - we divide both sides of the equation by (5) to get x
76/5=x 
15.2=x 
x=15.2


20% of 76=15.2