Question 439467: Could someone please show me how to solve this? A cellular phone company offers a contract for which the C, in dollars, of the t minutes of telephoning is given by C=0.25(+-300)+42.95. Where it is assumed that t is less than or equal to 300 minutes. What time will keep the costs between $84.95 and $114.45 the telephoning time must be between _ and _ minutes
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A cellular phone company offers a contract for which the C, in dollars, of the t minutes of telephoning is given by C=0.25(+-300)+42.95. Where it is assumed that t is less than or equal to 300 minutes. What time will keep the costs between $84.95 and $114.45 the telephoning time must be between _ and _ minutes
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Where is "t" in your formula?
Cheers,
Stan H.
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