You have a cell phone plan that allows for unlimited calling and 1000 text messages for $21.25. Every text message for 1000 text
messages will cost $0.10 per text. Your parents will only pay up to $60 for you phone bill. A) Write an inequality to model this situation. Be sure to define your variables.
Answer: 60-0.10y > 21.25
B) How many text messages could you send each month?
[Insert your answer here]
I think the problem means to say that the first 1000 text messages are included in the $21.25 plan, and messages above the included 1000 cost $0.10 each.
A)
Let m = number of text messages above 1000.
0.1m is the cost of the messages past the included 1000.
The cost of the plan ($21.25) plus the cost of the messages above 1000, must cost up to $60.