Question 34596
X+Y=1090 & 16X+28Y=24232 OR X=1090-Y SUBSTITUTING (1090-Y) FOR X IN EQUATION #2 WE GET

16(1090-Y)=24232 OR 17440-16Y+28Y=24232 OR 12Y=6792 0R Y=6792/12 OR Y=566 THUS 
1090-566=524 OR FRI. SALES WERE 524@16=8384 & SAT SALES WERE 566@28=15848 SO
8384+15848=24232