Homework Help: Math

Posted by Andrea on Saturday, July 26, 2008 at 12:37pm.

Suppose you have two alcohol+water solutions. One solution ( of volume x liter ) is 45% alcohol, while the second solution (of volume y liter) is 75% alcohol. What values of "x" and "y" (in liters) will fill a total volume of 5.0 liter which contains 2.88 liters of alcohol ?

I need to make two equations from this and use the substitution or elimination method to solve this problem.

Math - drwls, Saturday, July 26, 2008 at 2:01pm
x + y = 5.0

0.45 x + 0.75 y = 2.88

Now you do the algebra.

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