Answered

John played a note on his tuba that vibrated the air 120 times per
second. If he played the note for 4 seconds, how many times did
the air vibrate?

Answer :

Answer:

480 times

Step-by-step explanation:

per second=120

4 seconds=?

120 x 4 = 480

bradyschmiel

Answer:

480

Step-by-step explanation:

12*4=48

put a zero on the end and you get:

480

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