1000 text messages = $10, all additional +.10 how many text messages can you get per month for $25

Question

The FCI message pack 1000 plan includes 1000 text messages per month for $10. Additional text messages are $.10 each. If Jean Olsen uses this plan, what is the maximum number of text messages she can purchase for less then $25 per month.

Answer 1

Hi Thomas,

 

Let's let t = number of text messages in excess of 1000

 

The 1st 1000 messages cost $10, additional messages cost $0.10 and Jean wants to spend less than $25 a month.

 

We can set up the problem like this

 

0.10t =15  

t = 150

 

Since t represents the number of messages beyond the first 1000, Jean can send 1,150 messages for $25 a month.

 

Note:  There's a bit of a contradiction in your question. In the heading it says how many texts for $25 a month.  In the body of the post it says less than $25 a month.

 

If the correct question is as in the title, the answer is 1,150 texts a month.

If the correct question is as in the body of the post, the answer is 1,149 texts a month, since we want to spend less than $25 a month.