Question 1126501
x of the pure acid
90-x of the 10% acid


{{{100x+10(90-x)=64*90}}}

-

{{{10x+90-x=64*9}}}

{{{9x=64*9-90}}}

{{{x=64-10}}}

{{{x=54}}}-----liters of the pure, 100% acid.


{{{cross(46)}}}{{{36}}}------liters of the 10% acid.