SOLUTION: The cost "C" in cents of an internet telephone call lasting "m" minutes is a flat "x" cents total for the first 3 minutes and "y" cents for each additional minute. a. Write two

Algebra ->  Linear-equations -> SOLUTION: The cost "C" in cents of an internet telephone call lasting "m" minutes is a flat "x" cents total for the first 3 minutes and "y" cents for each additional minute. a. Write two      Log On


   

Question 1123785: The cost "C" in cents of an internet telephone call lasting "m" minutes is a flat "x" cents total for the first 3 minutes and "y" cents for each additional minute.
a. Write two formulas for "C" one for the cost of calls lasting 3 minutes or less and another for the cost of calls lasting more than 3 minutes

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
if the call lasts 3 minutes or less, c = x
if the call lasts more than 3 minutes, c = x + y * (m-3).

for example, assume x is $1.00 and y is $.25 per minute.

call lasting less than or equal to 3 minutes costs $1.00.

call lasting 20 minutes costs $1.00 + $.25 * 17 = $1.00 + $4.25 = $5.25.