Question

I phone company offers to monthly plan plan a cost $21 plus an additional $0.17 each minute of calls play B $26 in additional 0.12 $ for each minute of calls For what amount of calling do the two plans cost the same

Answer 1

100 minutes

Explanation:

Let x = # of minutes

Company A: y = 21 + .17x

Company B: y = 26 + .12x

Set the equations = to each other.

21 + .17x = 26 + .12x

.17x = 5 + .12x

.05x = 5

x = 100