A bag contains 7 red marbles, 12 orange marbles, 18 yellow marbles, and 5 purple marbles. A marble is drawn at random from the bag.

What is the probability that the marble drawn will not be orange?

Respuesta :

7+12+18+5=42 total marbles 
42-12 to get non orange marbles
(30/42)*100= probability of not getting an orange 
.714*100= 71.4% if asked for percent or 5/7 if fraction 
5/7 is your answer. 
Hope this has helped