Question 313942
12X+10(588-X)=588*11
12X+5,880-10X=6,468
2X=6,468-5,880
2X=588
X=588/2
X=294 POUNDS OF $12 COFFEE IS USED.
588-294=294 LOUNDS OF $10 COFFEE IS USED.
PROOF:
12*294+10*294=588*11
3,528+2,940=6,468
6,468=6,468