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September 22, 2014

September 22, 2014

Posted by **kissy** on Friday, October 23, 2009 at 10:05pm.

- math -
**Ms. Sue**, Friday, October 23, 2009 at 10:10pm60 mile * 5,280 feet = feet per hour

60 seconds * feet per hour = feet per second

- math -
**kissy**, Friday, October 23, 2009 at 10:14pmwhere did the number 5280 come from.. and i figured it would be with you numbers 19008000 feet per seconds correct.

- math -
**Reiny**, Friday, October 23, 2009 at 10:14pmdo it step by step

60 miles/1 hour

= 60(5280) feet/1 hour

= 316800 feet/60 minute

= 316800 feet/3600 seconds

= 88 feet/second

- math -
**kissy**, Friday, October 23, 2009 at 10:16pmi am confused is it divid or times

- math -
**Ms. Sue**, Friday, October 23, 2009 at 10:17pmBoth * and () are symbols for multiplication.

- math -
**Reiny**, Friday, October 23, 2009 at 10:18pmBTW, a rough estimate to change mph to feet/sec

is to take half of the rate in miles and add it on .

i.e. multiply the mph rate by 1.5

reason: 1 mph = 1.4666 feet/sec

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