Question

11. Your Cell phone Plan costs $39.99 per month + $0.12 for each text message you send or receive You have at most $45 to spend on your cell phone bill. What is the maximum number of text messages that you can send or receive next month? The maximum number of text Messages is

Answer 1

41 text messages. 45-39.99= 5.01
5.01/.12 =41.75 round down to 41 messages since you can’t pay the extra message.

Answer 2

41

Explanation:

The total cost is the flat rate plus the cost per test

39.99 + .12 m where m is the number of messages

This must be less than or equal to 45

39.99 + .12 m≤ 45

Subtract 39.99 from each side

39.99-39.99 + .12 m≤ 45-39.99

.12 m≤ 5.01

Divide each side by .12

.12m /.12≤ 5.01/.12

m ≤ 41.75

Rounding down to the nearest integer

The maximum number of messages is 41