Algebra Review

Question

a cell phone provider offers a plan that costs $30 per month plus $0.10 per text message sent or received. A comparable plan costs $40 per month but offers unlimited text messaging. in order for the text messages to cost the same, how many text messages would have to be sent or received?

Answer 1

30 + 0.10*N = $40

 

0.10*N = 40 - 30

 

0.10 N = 10

 

10N = 1000

 

N = 100

 

100 text messages