FlayMaster101
05.07.2020 •
Mathematics
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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Ответ:
100 times
Step-by-step explanation: vibration per second: 50 times
vibration for 2 seconds; 50*2=100 times
Ответ:
From Edgenuity: This ratio compares part-to-part, or the number of votes from girls to the number of votes from boys. If 123 people voted for Danny and 55 of those votes were from girls, then 68 votes were from boys. The ratio would be 55:68.