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20 March, 04:57

for every 30 minutes of TV air time there are 8 minutes of commercial. If 90 minutes of TV or are now how many how many minutes a commercial will be there

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  1. 20 March, 08:24
    0
    Let m = minutes of commercial

    30/90 = 8/m

    Solve for m.

    90 (8) = 30m

    720 = 30m

    720/30 = m

    24 = m
  2. 20 March, 08:28
    0
    Answer: 24 minutes of commercials.

    Step-by-step explanation: Divide 90 by 30 to figure out how much you're going to multiply the 8 minutes of commercial by.

    The answer is three, then multiply three by the 8 minutes of commercial to get the answer for how many minutes a commercial will be if there were 90 minutes of TV air time.

    For every 30 minutes there are 8 minutes, so you just multiply the constant figure which is three by the number that has not yet been changed.
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