SOLUTION: Media Services charges $40 for a phone and $20/month for its economy plan. Find a model that determines the total cost, C(t), of operating a Media Services phone for t months.

Question 483339: Media Services charges $40 for a phone and $20/month for its economy plan. Find a model that determines the total cost, C(t), of operating a Media Services phone for t months.
Answer by rosey51235(30) (Show Source): You can put this solution on YOUR website!
If I understand this correctly, this one is fairly simple.
If C=the total cost and t=the months you have the phone, you just need to put those things into an equation using the number values. $20 a month for the plan and a one-time, flat fee of $40 for the phone itself.
C=20t+40
So, if you had and operated the phone for 5 months, it would be C= 20(5)+40
C=100+40, The cost at this point would be $140.
Hope I helped! :)
-Rosey
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