Asked by Janelle
Media service charges $20 for a phone and $30/month for its economy plan. The equation c=30t +20 describes the total cost,c, of operating Media Services phone for t months.
The total cost for 4 months of service is $140?
If a customer has only $90 available, how many months of service can she receive?
A. 2
B. 2 1/3
c. 2 1/2
d. 3
I was thinking C.?
The total cost for 4 months of service is $140?
If a customer has only $90 available, how many months of service can she receive?
A. 2
B. 2 1/3
c. 2 1/2
d. 3
I was thinking C.?
Answers
Answered by
drwls
The answer would be B (2 1/3) if the phone company billed for partial months or refunded the unused part of a month. But that is not how most of them work. If payment must be in whole months, the answer would be A.
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