Homework Help: Algebra 2

Posted by Trisan on Sunday, October 18, 2009 at 7:29pm.

A boat travels 60 km upstream and back again in 8 hours. If the speed of the boat is 16 km/h, what is the speed of the current?

Algebra 2 - Reiny, Sunday, October 18, 2009 at 9:51pm
Let the speed of the boat be x km/h

60/(16+x( + 60/(16-x) = 5

hint: multiply each term by (16+x)(16-x)

(I got x=8)

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