Question

A phone company offers two monthly plans. Plan A costs $16 plus an additional 0.14 for each minute of calls. Plan B costs 21 plus an additional 0.10 each minute of calls. For what amount of calling do the two plans cost the same?

Answer 1

12.5

Explanation:

16+0.14x = 21+0.1x

-16 -16

0.14x=5+0.1x

-0.1 -0.1

0.4x=5

5/0.4 = 12.5