Let x be number or ounces of a 5% alcohol solution, then:
[tex]x(0.05)+17(0.10)=(x+17)(0.06)[/tex]Solving the above equation for x, we get:
[tex]\begin{gathered} 0.05x+1.7=0.06x+1.02 \\ 0.01x=1.7-1.02 \\ 0.01x=0.68 \\ x=68 \end{gathered}[/tex]Therefore, you must add 68 ounces of the 5% alcohol solution.