Question 970057
<pre>
Your equation

5x+2y=3  is wrong.

It came from

0.05x+0.2y=0.03  <-- that says (% acid) + (% acid) = %

When you add acid to acid you get acid, not "percent"!

is wrong

It should be

5x+2y=18
which comes from:    

0.05x+0.02y=.03(60)
0.05x+0.02y=1.8  
      5x+2y=18

Now you can finish.

Edwin</pre>