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January 12th, 2017, 10:39 PM  #1 
Senior Member Joined: Jan 2017 From: US Posts: 113 Thanks: 6  Write a System of Inequalities for this Problem..? A music store is selling CDs for either $10 or $15. A customer wants to spend between $30 and $60 on the CDs. Write the system of inequalities that represents this situation and graph its solution region. Could anyone point me in the right direction with this? I really have no clue where to start. Any help would be appreciated! Thanks in advance! 
January 13th, 2017, 12:15 AM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,264 Thanks: 1198 
the customer buys $m$ cds at $10$ and $n$ cds at $15$ they thus spend a total of $10m + 15n$ write the two inequalities that compare this to the amount the customer wants to spend. 
January 13th, 2017, 12:34 AM  #3 
Senior Member Joined: Jan 2017 From: US Posts: 113 Thanks: 6  
January 13th, 2017, 12:36 AM  #4 
Senior Member Joined: Sep 2015 From: USA Posts: 2,264 Thanks: 1198  
January 13th, 2017, 12:38 AM  #5 
Senior Member Joined: Jan 2017 From: US Posts: 113 Thanks: 6  

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