SOLUTION: A certain college offers students two monthly options for local telephone service. Option A: Unlimited number of local calls for $20.00 per month. Option B: Basic charge of $

Question 335371: A certain college offers students two monthly options for local telephone service.
Option A: Unlimited number of local calls for $20.00 per month.
Option B: Basic charge of $15.00 per month plus $0.10 charge for each local call.
What is the least number of local calls in a month for which option A is less expensive than option B?
(A) 5 (B) 15 (C) 49 (D) 50 (E) 51
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

When the number of calls is greater than or equal to 50, Plan B will be equal to or more expensive than Plan A.
So then N=49 is the most number of calls you can make and still be cheaper using Plan B.

RELATED QUESTIONS
The telephone company offers two types of service with plan A you can make an unlimited... (answered by josmiceli,Theo)

Could someone please help me? I am in need of a lesson on how to tackle algebra 2 word... (answered by ReadingBoosters)

I have been struggling on this problem for awhile now and I was wondering if someone... (answered by ankor@dixie-net.com)

Here's the math problem: Robert must select a monthly calling plan for local telephone... (answered by rothauserc)

can someone please show me how to solve this problem You need to choose between two... (answered by stanbon)

You need to choose between two telephone plans for local calls. Plan A charges $25 per... (answered by checkley77)

You need to choose between two telephone plans for local calls. Plan A charges $25 per... (answered by mananth)