[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]
- 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 ?
[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
Okay, from the given word problem we can understand that :-
- Time a note takes to vibrate in the air per second = 120 times
We are asked to find how many times the air will vibrate if John played a note on his tuba for 4 seconds. For this, we need to multiply the time taken by the note to vibrate in the air per second into 4. That is, we need to calculate ⇨ 120 × 4
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[tex]\huge\sf\:120 \times 4[/tex]
Multiply 120 by 4 to get 480.
[tex] = \huge\boxed{\boxed{\bf \: 480 \: \: times}}[/tex]
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So, the answer is ⇨ The air will vibrate about 480 times if John played a note on his tuba for 4 seconds.
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