SOLUTION: Your cellphone company offers two text-messaging plans.one plan costs $.25 per text message ,plus a monthly fee of $9. The other plan costs $.40 per text message with no monthly fe

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Your cellphone company offers two text-messaging plans.one plan costs $.25 per text message ,plus a monthly fee of $9. The other plan costs $.40 per text message with no monthly fe      Log On


   

Question 793125: Your cellphone company offers two text-messaging plans.one plan costs $.25 per text message ,plus a monthly fee of $9. The other plan costs $.40 per text message with no monthly fee.
A)For how many text messages will both plans cost the same amount?
B)If you use about 80 text messages each month , which plan should you choose?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
0.25x+9=0.40x
9=0.40x-0.25x
9=0.15x
9/0.15=x
60=x
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0.25*80+9=$29
0.40*80=$32
you decide