A bag contains 21 red marbles, 4 white marbles, and 3 gray marbles. Do you randomly pick out a marble recorded color and put it
back in the bag. You repeat this process 84 times. How many white or gray marbles do you expect to get?
1 answer:
Answer:
28
Step-by-step explanation:
you add 21, 4, and 3 to find the total
then you find how many are white or gray
7/28= 1/3
1/3 times 84
84 times 1 divided by 3
84/3
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