Question 375435
1.{{{A+B=100}}}
.
.
{{{40A+65B=55(100)}}}
2.{{{8A+13B=1100}}}
Multiply eq. 1 by -8 and add to eq. 2,
{{{-8A-8B+8A+13B=-800+1100}}}
{{{5B=300}}}
{{{highlight(B=60)}}}liters
Then from eq. 1,
{{{A+60=100}}}
{{{highlight(A=40)}}}liters