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6 votes
6 votes
There is a bag with only red marbles and blue marbles.

The probability of randomly choosing a red marble is 3/7
There are 12 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.

User Thomas Sablik
by
3.1k points

1 Answer

25 votes
25 votes

Answer:

28 marbles

Explanation:

"x" total number:


x=(12)/((3)/(7) ) =((12)(7))/(3) =(84)/(3) =28

hope its help you

User Rex Linder
by
2.7k points