At the craft store, Gabby bought a bag of blue and red marbles. She received 63 blue marbles and 21 red marbles. What percentage of the marbles were blue?

Write your answer using a percent sign (%).

Respuesta :

Answer:

75%

Step-by-step explanation:

63+21 = 84

That is the overall amount of marbles, this allows you to get a percentage

63/84 = .75 = 75%