Write an equation that represents the following problem.
There are two cell phone plans available from Cell Phones R Us company. Plan A charges $30 a month plus $0.01 for every text message. Plan B charges $20 a month plus $0.05 for every text message. How many text messages do you need to send in order for Plan A to cost the same as Plan B?



30 + 5m = 20 + m

30 + 0.05m = 20 + 0.01m

20 + 0.05m = 30 + 0.01m

20 + 5m = 30 + m

Respuesta :

20+ 0.05m = 30 + 0.01m
set them equal to each other
minus 20 from 30
minus 0.01 from 0.05
10= 0.04m
divide
m=250
M = total count of messages
Plan A:
Total Cost = $30 + $0.01m

Plan B:
Total Cost = $20 + $0.05m

The answer would be 3:
20 + 0.05m = 30 + 0.01m