Posted by at on Sunday, January 24, 2010 at 12:27pm.
help please im on my final exam for algebra and i need to pass this is the second time taking it.
media services charges $20 for a phone and $30 a month for itd economy plan. the equation c=30t+20 describes the total cost c, of operating a media service phone for t months.
the total cost for two months service?
if a customer has only $90 available how many months of service can she recive?

algebra  Ms. Sue, Sunday, January 24, 2010 at 12:31pm
Total cost for 2 months is 20 + 30 + 30.

algebra  at, Sunday, January 24, 2010 at 12:32pm
so it would be $80 for two months then?

algebra  Ms. Sue, Sunday, January 24, 2010 at 12:34pm
Right.

algebra  at, Sunday, January 24, 2010 at 12:36pm
thank you that means she will be only able to get two months with her $90 then?

algebra  at, Sunday, January 24, 2010 at 12:37pm
or maybe two and a half months with her $90>?

algebra  Ms. Sue, Sunday, January 24, 2010 at 12:40pm
Services don't sell parts of months. Yes her $90 buys her the phone and two months service. She'll have $10 left over.

algebra  at, Sunday, January 24, 2010 at 12:41pm
thank you

algebra  Ms. Sue, Sunday, January 24, 2010 at 1:28pm
You're welcome.
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