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Question 1

You are choosing between two different cell phone plans. The first plan charges a rate of 21 cents per minute. The second plan charges a monthly fee of $39.95 plus 10 cents per minute.
Let `t` be the number of minutes you talk and `C_1` and `C_2` be the costs (in dollars) of the first and second plans. Give an equation for each in terms of t, and then find the number of talk minutes that would produce the same cost for both plans (Round your answer to the nearest whole number).

 

 

If you talk for   minutes the two plans will have the same cost.

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