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Alex777 [14]
3 years ago
9

HELP QUICK!!!!!!!!!!

Chemistry
1 answer:
Semenov [28]3 years ago
8 0

Answer: 4 hours and 30 minutes

Explanation: because first wave was 1:30:00 and the second is 1:34:30

1:30:00 goes into 1:34:30 4 hours and 30 minutes.

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