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

Kathy bicycles 5km/h faster than Javier. In the same time it takes Javier to bicycle 49km, Kathy can bicycle 63 km. How fast does each bicyclist travel?

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

Vk/Vj = 63/49 = 9/7

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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 -
**Tammy**, Sunday, February 20, 2011 at 2:41pm
Kathy 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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