Recent content by puma072806

Would I multiply .12 by 72 ? Which would then be 8.64 This is what I have so far. .12 X 72=8.64 .08x + .2y=8.64 (100) .08x + .2y=8.64 (100) 8x + 20y= 864

Homework Statement A chemist ran out of a 72 ml solution of 12% alcohol. All that is left in the lab is 8% alcohol and 20% alcohol. How many ml of 8% and 20% would be needed to make a 72 ml solution of 12%? Homework Equations The Attempt at a Solution 8x + 20y = 12

Thanks everybody for all your help. I was able to figure it out with your help. I got 24 hours as the final answer and the professor said it was correct. Thanks again!

6 liters per second So would it take six hours to fill the tank if only B were open? Or 5?

That's all the info that the problem gives. Like I said I'm sure this is really easy for most people but I just can't wrap my head around it.

Skeptic2 is right as far as interpreting the problem goes. Can anyone help me out?! Thanks.

I understand this is a basic problem. For some reason I just can't wrap my head around it. Any help is appreciated. Homework Statement Water flows through Pipe A five times faster than through Pipe B. When water flows through the both pipes a tank would be filled in 4 hours. How long will...