Q:

A phone company offers two monthly plans. Plan A costs $30 plus an additional $0.15 for each minute of calls. Plan B costs 25$ plus an additional $0.20 for each minute of calls.For what amount of calling do the two plans cost the same?What is the cost when the two plans cost the same?

Accepted Solution

A:
A phone company offers two monthly plans. Plan A costs $30 plus an additional $0.15 for each minute of calls. Plan B costs $16 plus an additional $0.20 for each minute of calls.For what amount of calling do the two plans cost the same?What is the cost when the two plans cost the same?Plan A = 30 +0.15xPlan B = 16 +0.20x30+0.15x = 16+0.20xsubtract 16 from each side14 +0.15x = 0.20xsubtract 0.15x from each side14=0.05x x = 14/0.05 = 280 minutes280*0.15 = 42 +30 = $72280 * 0.20 = 56 +16 = 72 280 minutes and cost $72 each