Posted by **Chris** on Wednesday, April 24, 2013 at 8:34pm.

When the temperature is 68°F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometers does sound travel in five seconds?

Can some one help with the steps?

- math 7th -
**Ms. Sue**, Wednesday, April 24, 2013 at 8:39pm
343 * 5 = 1715 meters

1 km = 1000 m

1715 / 1000 = _______ km in 5 seconds

- math 7th -
**Chris**, Wednesday, April 24, 2013 at 8:41pm
Thanks Ms. Sue I see what I forgot to do.

- math 7th -
**Ms. Sue**, Wednesday, April 24, 2013 at 8:45pm
You're welcome, Chris. :-)

- math 7th -
**Anonymous**, Monday, April 29, 2013 at 10:19pm
If 3 inches represent 18 miles what do 7 inches represent

- math 7th -
**nword**, Wednesday, April 29, 2015 at 2:42pm
so what is the answer

- math 7th -
**cool**, Sunday, April 3, 2016 at 10:56am
the answers is 26

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