SOLUTION: for the typical "one-hour" prime time television slot, the number of minutes of commercials is 3/7 of the number of minutes of the actual program. Determine how many minutes of the

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Question 339719: for the typical "one-hour" prime time television slot, the number of minutes of commercials is 3/7 of the number of minutes of the actual program. Determine how many minutes of the program are shown in that one hour.
How do i solve this...?
it says the answer is 42 mins but how do i get to that answer?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
p + (3/7)p = 60 ___ (10/7)p = 60 ___ 10p = 420 ___ p = 42