Answer: 454.091 minutes
Step-by-step explanation:
X is the number of minutes that will be used during a month:
1st) 0.23x
2nd) 49.95 + 0.12x
How many minutes would you have to use in a month in order for the plans to cost the same?
So, when 1st = 2nd
0.23x = 49.95 + 0.12x
0.23x - 0.12x = 49.95
0.11x = 49.95
x = 49.95/0.11
x = 454.091 minutes