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 $43 under this promotional deal, how many mi

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Question 102968: 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 $43 under this promotional deal, how many minutes of phone calls did he make? round to the nearest interger, if necessary.
Answer by tutor_paul(427) About Me  (Show Source):
You can put this solution on YOUR website!
Set up an equation like this to describe the problem:
15%2B0.05x=43
Now, just solve for x:
0.05x=43-15
0.05x=28
highlight%28x=560%29
Good Luck,
tutor_paul@yahoo.com