Question

When making a long-distance call from a certain pay phone, the first three minutes of a call cost $0.95. After that, each additional minute or portion of a minute of that call costs $0.12. Find the maximum number of minutes one can call long distance for $5.00.

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

data:

pay phone:

distance call

Step 02:

equations:

3 minutes:

$0.95

$0.12 per additional minute

x = # additional minutes

$5.00 = $0.95 + $0.12x

5 = 0.95 + 0.12x

5 - 0.95 = 0.12x

4.05 = 0.12x

4.05 / 0.12 = x

33.75 = x

total minutes = 3 min + 33.75 min = 36.75 min

The answer is:

total minutes = 36.75 min