Question 1179772
<pre><font face = "consolas" color = "indigo" size = 3><b>
Hi
.65(90-x) + .95x = .85(90)
               x = .20(90)/.30 = 60oz 95%   
                                 30oz 65%

    19.5 + 57 = 76.5  checks. 
Wish You the Best in your Studies.
</font></b></pre>