SOLUTION: On top of the $45 monthly fee, Sam’s cell phone plan charges $0.15 for every text message he sends or receives. If Sam budgets $80 a month for his cell phone, how many text message

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: On top of the $45 monthly fee, Sam’s cell phone plan charges $0.15 for every text message he sends or receives. If Sam budgets $80 a month for his cell phone, how many text message      Log On


   

Question 921331: On top of the $45 monthly fee, Sam’s cell phone plan charges $0.15 for every text message he sends or receives. If Sam budgets $80 a month for his cell phone, how many text messages can he send or receive each month? Explain.
lexiejohnylle_27@icloud.com
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

there is $45 monthly fee-this is constant value
there are charges $0.15 for every text message he sends or receives
Sam budgets $80 a month for his cell phone
find: how many text messages can he send or receive each month
let text messages be x
charges for text messages are: $0.15%2Ax
total budget $80 should be equal to $0.15%2Ax plus $45 monthly fee
set up equation:
80=0.15%2Ax%2B45 ..........solve for x
80-45=0.15%2Ax
35=0.15%2Ax
35%2F0.15=x
3500%2F15=x
233.3333333333333=x
233=x ...text messages can he send or receive each month