A telephone call costs c cents for the first 3 minutes and 12 cents for each additional minute. Write and solve an equation to find the total cost of 25 minutes call.
cost=c+(25-3)12
.76
To find the total cost of a 25-minute call, we need to consider two parts: the cost for the first 3 minutes and the cost for the additional minutes.
Let's break it down:
- The cost for the first 3 minutes is c cents, as given in the question.
- The cost for the additional minutes (from minutes 4 to 25) is 12 cents per minute.
To find the total cost, we can set up an equation:
Total cost = Cost for the first 3 minutes + Cost for additional minutes
Cost for the first 3 minutes = c cents
Cost for additional minutes = (25 - 3) * 12 cents
Now we can substitute these values into the equation:
Total cost = c + (25 - 3) * 12
Simplifying further:
Total cost = c + 22 * 12
Total cost = c + 264
So the equation to find the total cost of a 25-minute call is:
Total cost = c + 264
To solve the equation, we would need the value of c. If the value of c is given, we can simply substitute it into the equation to find the total cost.