Respuesta :
20/50 = x/100
cross multiply
(50)(x) = (100)(20)
50x = 2000
x = 2000/50
x = 40......so 20 is 40% of 50
cross multiply
(50)(x) = (100)(20)
50x = 2000
x = 2000/50
x = 40......so 20 is 40% of 50