Question

Your long distance telephone provider offers two plans. Plan A has a monthly fee of $15 and $0.25 per minute. Plan B has a monthly fee of $20 and $0.05 per minute. Write and solve an equation to find the number of minutes that you must talk to have the same cost for each of the plans.

Answer 1

Plan A:
15 + .25x

Plan B:
20 + .05x

Equation to solve for number of minutes:
15 + .25x = 20 + .05x

15 + .20x = 20

.20x = 5

X = 25

You need to talk on the phone for 25 minutes to get the same cost.