math
posted by Aaron .
A man drives x miles the first day, y miles the second day, and z miles the third day. The average mileage covered per day is

(x + y + z)/3

this is tha question
a television series consits of 8 programes, each 3 over 4of an hour. how many 3hour tapes would be required to tape the series please tell me how you work it out 
8 tapes x (3/4 hour) = 6 hours total to be taped.
That would require two three hout tapes.
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