SOLUTION: A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $66 under this promotional deal, how many m

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Question 898953: A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute
for all calls. If Joe's phone bill was $66 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
The problem just does not seem to describe enough information. Here is attempt to work with what you have:

Promotion:
15%2B0.05%2At using t for minutes

Bill for the Promotion:
66

That $66 bill would be 15%2B0.05t=66.
Not known if the deal is for a month or a year or some other time period. Still the bill was $66.
Solve that bill equation for t, the number of minutes.
0.05t=66-15
0.05t=51
t=20%2A51
highlight%28t=1020%29 minutes, which is 17 hours.