SOLUTION: Christinia's cell phone plan is $29.95 per month plus $0.10 for every minute over 500 minutes. If her cell phone bill was $99.95 this past month, how many minutes did she spend on

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Christinia's cell phone plan is $29.95 per month plus $0.10 for every minute over 500 minutes. If her cell phone bill was $99.95 this past month, how many minutes did she spend on       Log On


   



Question 696224: Christinia's cell phone plan is $29.95 per month plus $0.10 for every minute over 500 minutes. If her cell phone bill was $99.95 this past month, how many minutes did she spend on the phone?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
29.95+.10x=99.95
.10x=99.95-29.95
.10x=70
x=70/.10
x=700 minutes over 500 were used.
500+700=1200 min. ans.