Question

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

Answer 1

Answer:

100 times

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

                               vibration for 2 seconds; 50*2=100 times

Answer 2

Answer:

100 times

Step-by-step explanation:

2 seconds=100 times

100÷50=2

So now you can do

50×2=100