Question 186247
4X+3(30-X)=3.40*30
4X+90-3X=102
X=102-90
X=12 KG. OF $4.00 TEA IS USED.
30-12=18 KG. OF $ 3.00 TEA IS USED.
pROOF:
4*12+3(30-12)=3.40*30
48+3*18=102
48+54=102
102=102