Posted by **anthony** on Friday, March 20, 2009 at 5:54pm.

Solve the problem. A boat can go 33 mph in still water. It takes as long to go 300 miles upstream as it does to go downstream 360 miles. How fast is the current?

- math help please -
**bobpursley**, Friday, March 20, 2009 at 6:11pm
Downstream velocity is vb+vs

Upstream velocity is Vb-Vs

You are given Vb.

upstream: 300=(vb-vs)T

downstream:360=(vb+Vs)T

add the equations...

660=2vbT solve for time. Then, go back to either equation and solve for vstream.

- math help please -
**anthony**, Friday, March 20, 2009 at 6:36pm
i am getting lost somewhere...

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