number of messages she can send and receive so the unlimited plan is cheaper than paying for each message
<em><u>Solution:</u></em>
Natalie can send or receive a text message for $0.15
Natalie can get an unlimited number for $5
To find: Number of messages she can send and receive so the unlimited plan is cheaper than paying for each message
Let "x" be the number of messages
Cost for sending and receiving message = $ 0.15
Cost for unlimited plan = $ 5
Then, according to given, we frame a inequality as:
The condition is: unlimited plan is cheaper than paying for each message
Therefore,
(number of messages)(Cost for sending and receiving message) is greater than or equal to Cost for unlimited plan
Thus for messages ,the unlimited plan is cheaper than paying for each message