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26 April, 21:53

John played a note on his tuba that vibrated the air 50 times per second. If

he played the note for 2 seconds, how many times did the air vibrate?

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Answers (2)
  1. 26 April, 22:08
    0
    100 times

    Step-by-step explanation: vibration per second: 50 times

    vibration for 2 seconds; 50*2=100 times
  2. 26 April, 22:12
    0
    100 times

    Step-by-step explanation:

    2 seconds=100 times

    100:50=2

    So now you can do

    50*2=100
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