A bag contains blue marbles and red marbles, 58 in total. The number of blue marbles is 4 more than 5 times the number of red marbles. How many blue marbles are there?

49 blue marbles

Step-by-step explanation:

From the question we are given;

Total number of marbles = 58 Blue marbles are 4 more than 5 times the red marbles

We need to determine the number of blue marbles;

Assuming the number of red marbles is x

Then, blue marbles will be 5x + 4

Therefore;

x + 5x + 4 = 58

6x + 4 = 58

6x = 54

x = 9

5x + 4 = 5 (9) + 4 = 49

Therefore, the red marbles are 9 while the blue marbles are 49

Hence there are 49 blue marbles