A bag holds 28 blue marbles and 49 red marbles. What is the ratio of red marbles to the total number of marbles in the bag?
Question 4 options:
7 to 11
7 to 4
4 to 7
4 to 11
The total number of marbles in the bag is 28 + 49 = 77.
The ratio of red marbles to the total number of marbles is 49 to 77, which can be simplified to 7 to 11.
Therefore, the correct answer is 7 to 11.