Homework Help: algebra

Posted by Holly on Thursday, October 28, 2010 at 6:45pm.

Can someone PLEASE explain how to do this to me? Thank you so much!

Ten gallons of a 30% acid mixture is obtained by mixing a 50% solution (X) with 20% solution (Y). Write an equation for the 10 gallon mixture. What is the acid concentration, in gallons, of the final mixture? Write an equation for the acid concentration.

algebra - Reiny, Thursday, October 28, 2010 at 9:21pm
x+y=10 ---- equation #1

.5x + .2y = .3(10) ---- equation #2

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