Homework Help: college algebra

Posted by Zachery on Wednesday, December 12, 2012 at 12:43pm.

water from a tank is being used for irrigation while the tank is being filled. The two pipes can fill the tank in 6h and 8h, respectively. the outlet pipe can empty the tank in 24h. How long would it take to fill the tank with all three pipes open? round the answer to the nearest decimal plce.

college algebra - Zachery, Wednesday, December 12, 2012 at 12:50pm
4 hours
college algebra - Steve, Wednesday, December 12, 2012 at 12:53pm
how much of the tank is filled each hour?
1/x = 1/6 + 1/8 - 1/24
1/x = 1/4
x = 4 hours

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