SOLUTION: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $26 one-time activation fee and charges 7 cents a minute. The secon
Algebra.Com
Question 316885: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $26 one-time activation fee and charges 7 cents a minute. The second plan has no activation fee and charges 12 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?
Found 2 solutions by nerdybill, solver91311:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $26 one-time activation fee and charges 7 cents a minute. The second plan has no activation fee and charges 12 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?
.
Let t = minutes used
.
First plan:
.07t + 26
Second plan:
.12t
.
Set the two equal to each other and solve for t:
.07t + 26 = .12t
26 = .05t
26/.05 = t
520 minutes = t
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the number of minutes used.
Let 
represent the cost function for the first company.
\ =\ 0.07x\ +\ 26)
Let 
represent the cost function for the second company.
\ =\ 0.12x)
When will 
?
After some number of minutes that satisfies:
Just solve for
John
RELATED QUESTIONS
Customers of a phone company can choose between two service plans for long distance... (answered by rfer)
Customers of a phone company can choose between two service plans for long distance... (answered by checkley71)
Customers of a phone company can choose between two service plans for long distance... (answered by stanbon)
Customers of a phone company can choose between two service plans for long distance... (answered by pinklipgloss2007,richwmiller)
Customers of a phone company can choose between two service plans for long distance... (answered by checkley77,josmiceli)
Customers of a phone company can choose between two service plans for long distance... (answered by rfer)
Customers of a phone company can choose between two service plans for long distance... (answered by mananth)
Customers of a phone company can choose between two service plans for long distance... (answered by rwm)
Customers of a phone company can choose between two service plans for long distance... (answered by drcole)