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September 20, 2014

September 20, 2014

Posted by **karen** on Friday, November 21, 2008 at 4:23pm.

- college algebra -
**drwls**, Friday, November 21, 2008 at 4:32pmVk = Vj + 5

Vk/Vj = 63/49 = 9/7

------------------

Vj = (7/9)Vk

Vk = (7/9)Vk + 5

(2/9)Vk = 5

Vk = 22.5 km/h

Vj = 17.5 km/h

- college algebra -
**karen**, Friday, November 21, 2008 at 4:50pmawesome. thanks I was trying to do r=d/t and wasn't getting it right.

- college algebra -
- college algebra -
**Tammy**, Sunday, February 20, 2011 at 2:41pmKathy bicycles 8 km/h faster than Chris. In the same time it takes Chris to bicycle 57 km, Kathy can bicycle 81 km. How fast does bicylist go?

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