The cost of a certain music plan is 9.99 per year plus .50 per song you download. If you paid 129.99 one year, find the number of songs you download

Question

 

Please help!!

Answer 1

y= mx + b 

 

y is the total cost$ 129.99, m= .50 per song and b is the fixed cost of 9.99

 

 

$129.99 = .50x + 9.99

   -9.99               -9.99

__________________________

     $120.00 = .50x
________       ____

  

       .50           .50

      

     240      =      x     , so therefore you downloaded 240 songs

Answer 2

The music plan is $9.99 each year.

 

Each song costs .50 to download.

 

If you paid 129.99 in one year, the number of downloads would be:

 

9.99 + 0.50x= 129.99

 

 

 

Answer 3

s represents the number of songs

9.99 + 0.50s = 129.99

 

Can you solve for s?