Posted by **Carrie** on Friday, August 28, 2009 at 6:39pm.

How much longer (percentage) is a one-mile race than a 1500- race?

- Math -
**Ms. Sue**, Friday, August 28, 2009 at 6:43pm
1500 what? What units are used for the 1500-race?

- Math -
**Carrie**, Friday, August 28, 2009 at 6:47pm
oh sorry about that, it is 1500 m

- Math -
**Reiny**, Friday, August 28, 2009 at 6:48pm
one mile = 1.609344 km

= 1609.344 m

so the excess distance over the 1500 m race

= (1609.344 - 1500) m

= 106.344 m

as a percentage that would be

109.344/1500 = .0728 or appr. 7.3%

- Math -
**Carrie**, Friday, August 28, 2009 at 6:52pm
Thank you!

- Math -
**Ms. Sue**, Friday, August 28, 2009 at 6:54pm
There are several ways to figure this problem. I took the easy way and converted 100 meters to miles at this site

http://www.metric-conversions.org/length/meters-to-miles.htm

1500 meters = 0.932 mile

1 - 0.932 = 0.068

0.068 = 6.8%

- OOPS ...Math -
**Reiny**, Friday, August 28, 2009 at 7:09pm
guilty of a transcript error.

last two lines should have been ...

as a percentage that would be

106.344/1500 = .0709 or appr. 7.1%

- Math -
**Carrie**, Friday, August 28, 2009 at 7:11pm
I understand the concept thank you again!

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